Vacuum adiabatic body and refrigerator

ABSTRACT

A vacuum adiabatic body of the present embodiment may include a first plate, a second plate, a seal configured to seal the first plate and the second plate to provide a vacuum space, and a support configured to maintain the vacuum space. Optionally, the support may include a first support having a first support plate formed in a grid shape, and a plurality of spacer coupling portions protruding from the first support plate. Optionally the support may include a second support having a second support plate formed in a grid shape, and a plurality of spacers protruding from the second support plate and coupled to each of the plurality of spacer coupling portions to form a plurality of bars together with the plurality of spacer coupling portions. Optionally, the support may include a radiation resistance sheet supported by a portion of the plurality of bars and spaced apart from at least one of the first support plate and the second support plate. Alternatively, each of the support plates may include a plurality of through-holes. Optionally, a distribution structure generated after injection molding of the first and second supports may be provided in some of the plurality of through-holes.

TECHNICAL FIELD

The present disclosure relates to a vacuum adiabatic body and arefrigerator.

BACKGROUND ART

Adiabatic performance can be improved by constructing an adiabatic wallwith vacuum. At least a portion of the internal space is made of vacuum,and a device for forming to obtain an adiabatic effect may be referredto as a vacuum adiabatic body.

The applicant has developed a technology to obtain a vacuum adiabaticbody that can be used in various devices and home appliances anddisclosed a refrigerator having a vacuum space of Korean Application No.10-2011-0113413 (Publication No. 10-2013-0048527).

The refrigerator includes a body having a storage space in which apredetermined stored items can be accommodated, wherein the bodyincludes an inner case in which the storage space is formed; an outercase accommodating the inner case and disposed to be spaced apart fromthe inner case by a predetermined gap; a vacuum space provided betweenthe inner case and the outer case, the inside of which is sealed andmaintained in a vacuum state, to perform an adiabatic action between theinner case and the outer case; a first support plate provided on one ofthe surfaces facing each other of the inner case and the outer case; anda plurality of spacers which are fixedly disposed on the first supportplate and support to maintain a gap between the inner case and the outercase.

The body further includes a second support plate provided on the otherof the surfaces facing each other of the inner case and the outer caseand disposed to face the first support plate.

The second support plate includes a plurality of grooves formed so thatthe end portions of the plurality of spaces are inserted into the innersurface thereof.

In this prior document, the first support plate only includes spacers ofthe same shape, and a specific technique for reducing heat transferbetween the support plates is not disclosed.

In addition, the prior document discloses only that the first supportplate includes a plurality of spacers and does not disclose a techniquefor uniformly forming each of the plurality of spacers in the firstsupport plate.

DISCLOSURE OF INVENTION Technical Problem

The present embodiment provides a vacuum adiabatic body and arefrigerator in which some of the plurality of bars of the support areprevented from being unmolded.

Optionally or additionally, the present embodiment provides a vacuumadiabatic body and a refrigerator that can be injection molded into adesired shape in the shape of a plurality of bars of the support.

In addition to the examples presented above, the present disclosureproposes specific solutions and means for solving them in [TechnicalSolution] and [Mode for Invention].

Solution to Problem

A vacuum adiabatic body according to an aspect may include a firstplate, a second plate, and a seal configured to seal the first plate andthe second plate to provide a vacuum space. Optionally, the vacuumadiabatic body may include a support configured to maintain the vacuumspace.

Optionally, the support may include a first support having a firstsupport plate formed in a grid shape, and a plurality of spacer couplingportions protruding from the first support plate. Optionally, thesupport may a second support having a second support plate formed in agrid shape, and a plurality of spacers protruding from the secondsupport plate and coupled to each of the plurality of spacer couplingportions to form a plurality of bars together with the plurality ofspacer coupling portions. Optionally, the support may include aradiation resistance sheet supported by a portion of the plurality ofbars and spaced apart from at least one of the first support plate andthe second support plate.

Optionally, each of the support plates may include a plurality ofthrough-holes. Optionally, a distribution structure generated afterinjection molding of the first and second supports may be provided insome of the plurality of through-holes. Optionally, at least a portionof the distribution structure may be removed from the supporter.

Optionally, one through-hole may be defined by a pair of first extensionportions and a pair of second extension portions. Optionally, thedistribution structure may include a support distribution portionlocated in the through-hole. Optionally, the distribution structure mayinclude a support bridge configured to extend in a radial direction fromthe support distribution portion and connected to at least one of thepair of first extension portions and the pair of second extensionportions.

Optionally, the support distribution portion may be formed in the formof a disk. Optionally, the distribution structure may include aplurality of support bridges disposed at equal intervals.

Optionally, the distribution structure may include a plurality ofsupport bridges symmetrically disposed with respect to the supportdistribution portion.

Optionally, the thickness of the support bridge may be the same as orthinner than the thickness of each support plate.

Optionally, at least a portion of the support bridge may decrease inthickness toward the expansion portion to which the support bridge isconnected. Alternatively, the width of the support bridge may be greaterthan the diameter of the spacer.

Optionally, the distribution structure may further include a supportstorage portion protruding from the support distribution portion.Optionally, the diameter of the support storage portion may be smallerthan the distance between the adjacent two bars. Optionally, the supportstorage portion may be formed in a cylindrical or truncated cone shape.Optionally, the diameter of the support storage portion may be smallerthan the diameter of the support distribution portion. Optionally, thediameter of the support storage portion may be larger than the diameterof each of the plurality of bars.

Optionally, at least a portion of the support distribution portion mayinclude a support gate. Or alternatively, the vacuum adiabatic body mayfurther include a support gate configured to protrude from the supportdistribution portion. Optionally, a diameter of the support gate may belarger than a diameter of each of the plurality of bars. Optionally, thediameter of the support gate may decrease as the distance from thesupport distribution portion increases.

Optionally, an extension direction of the support gate provided in thesecond support may be opposite to an extension direction of the spacer.Optionally, an extension direction of the support gate provided in thesecond support may be the same as an extension direction of the spacer,and a length of the support gate may be shorter than a length of thespacer.

Optionally, when a plurality of distribution structures are provided, aplurality of adjacent distribution structures are formed within 10pitches, and 1 pitch means the distance between two adjacent bars.

Optionally, the refrigerator of this embodiment may include the vacuumadiabatic body described above.

Advantageous Effects of Invention

According to the present embodiment, since the distribution structure islocated in the through-hole, the injection liquid is evenly distributedin the mold during the injection molding process of the support, so thatsome of the plurality of bars are prevented from being unmolded.

According to the present embodiment, since the distribution structure islocated in the through-hole, the injection liquid is distributed inmultiple directions by the bridge, so that the shape of a plurality ofbars can be injection molded into a required shape.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view illustrating a refrigerator according to anembodiment,

FIG. 2 is a view schematically illustrating a vacuum adiabatic body usedfor a body and a door of a refrigerator,

FIG. 3 is a view illustrating an embodiment of a support for maintaininga vacuum space,

FIG. 4 is a view for explaining an embodiment of a vacuum adiabatic bodycentering on a heat transfer resistor,

FIG. 5 is a graph for observing the process of evacuating the inside ofthe vacuum adiabatic body with time and pressure when the support isused,

FIG. 6 is a graph comparing vacuum pressure and gas conductivity,

FIG. 7 is a view illustrating various embodiments of a vacuum space,

FIG. 8 is a view for explaining an additional adiabatic body,

FIG. 10 is a view for explaining a branch portion on a heat transferpath between first and second plates having different temperatures,

FIG. 11 is a view for explaining a method for manufacturing a vacuumadiabatic body,

FIG. 12 is a perspective view illustrating a support according toanother embodiment,

FIG. 13 is an exploded perspective view illustrating the support of FIG.12 ,

FIG. 14 is a cross-sectional view illustrating a state in which thefirst support and the second support are coupled,

FIG. 15 is an enlarged view illustrating part A of FIG. 14 ,

FIG. 16 is an enlarged view illustrating part B of FIG. 14 ,

FIG. 17 is an enlarged view illustrating part C of FIG. 14 ,

FIG. 18 is an enlarged view illustrating part D of FIG. 14 ,

FIG. 19 is a view illustrating a distribution structure provided in theinjection-molded second support,

FIG. 20 is a plan view illustrating the second support,

FIG. 21 is a view taken along line 21-21 of FIG. 20 ,

FIG. 22 is a view taken along line 22-22 of FIG. 20 ,

FIG. 23 is a view illustrating a distribution structure of a secondsupport according to another embodiment,

FIG. 24 is a cross-sectional view taken along line 24-24 of FIG. 23 ,

FIG. 25 is a view illustrating a distribution structure of a secondsupport according to another embodiment,

FIG. 26 is a cross-sectional view taken along line 26-26 of FIG. 25 ,

FIG. 27 is a view illustrating a distribution structure of a secondsupport according to another embodiment,

FIG. 28 is a view illustrating a distribution structure of a secondsupport according to another embodiment,

FIG. 29 is a view illustrating a support gate in the distributionstructure in a state in which the first support and the second supportare coupled, and

FIG. 30 is a view illustrating another example of a gate in adistribution structure in a state in which the first support and thesecond support are coupled.

MODE FOR THE INVENTION

Hereinafter, specific embodiments will be described in detail withreference to the accompanying drawings. The invention may, however, beembodied in many different forms and should not be construed as beinglimited to the embodiments set forth herein, and a person of ordinaryskill in the art, who understands the spirit of the present invention,may readily implement other embodiments included within the scope of thesame concept by adding, changing, deleting, and adding components;rather, it will be understood that they are also included within thescope of the present invention. The present invention may have manyembodiments in which the idea is implemented, and in each embodiment,any portion may be replaced with a corresponding portion or a portionhaving a related action according to another embodiment. The presentinvention may be any one of the examples presented below or acombination of two or more examples.

The present disclosure relates to a vacuum adiabatic body including afirst plate; a second plate; a vacuum space defined between the firstand second plates; and a seal providing the vacuum space that is in avacuum state. The vacuum space may be a space in a vacuum state providedin an internal space between the first plate and the second plate. Theseal may seal the first plate and the second plate to provide theinternal space provided in the vacuum state. The vacuum adiabatic bodymay optionally include a side plate connecting the first plate to thesecond plate. In the present disclosure, the expression “plate” may meanat least one of the first and second plates or the side plate. At leasta portion of the first and second plates and the side plate may beintegrally provided, or at least portions may be sealed to each other.Optionally, the vacuum adiabatic body may include a support thatmaintains the vacuum space. The vacuum adiabatic body may selectivelyinclude a thermal insulator that reduces an amount of heat transferbetween a first space provided in vicinity of the first plate and asecond space provided in vicinity of the second plate or reduces anamount of heat transfer between the first plate and the second plate.Optionally, the vacuum adiabatic body may include a component couplingportion provided on at least a portion of the plate. Optionally, thevacuum adiabatic body may include another adiabatic body. Anotheradiabatic body may be provided to be connected to the vacuum adiabaticbody. Another adiabatic body may be an adiabatic body having a degree ofvacuum, which is equal to or different from a degree of vacuum of thevacuum adiabatic body. Another adiabatic body may be an adiabatic bodythat does not include a degree of vacuum less than that of the vacuumadiabatic body or a portion that is in a vacuum state therein. In thiscase, it may be advantageous to connect another object to anotheradiabatic body.

In the present disclosure, a direction along a wall defining the vacuumspace may include a longitudinal direction of the vacuum space and aheight direction of the vacuum space. The height direction of the vacuumspace may be defined as any one direction among virtual lines connectingthe first space to the second space to be described later while passingthrough the vacuum space. The longitudinal direction of the vacuum spacemay be defined as a direction perpendicular to the set height directionof the vacuum space. In the present disclosure, that an object A isconnected to an object B means that at least a portion of the object Aand at least a portion of the object B are directly connected to eachother, or that at least a portion of the object A and at least a portionof the object B are connected to each other through an intermediuminterposed between the objects A and B. The intermedium may be providedon at least one of the object A or the object B. The connection mayinclude that the object A is connected to the intermedium, and theintermedium is connected to the object B. A portion of the intermediummay include a portion connected to either one of the object A and theobject B. The other portion of the intermedium may include a portionconnected to the other of the object A and the object B. As a modifiedexample, the connection of the object A to the object B may include thatthe object A and the object B are integrally prepared in a shapeconnected in the above-described manner. In the present disclosure, anembodiment of the connection may be support, combine, or a seal, whichwill be described later. In the present disclosure, that the object A issupported by the object B means that the object A is restricted inmovement by the object B in one or more of the +X, −X, +Y, −Y, +Z, and−Z axis directions. In the present invention, an embodiment of thesupport may be the combine or seal, which will be described later. Inthe present invention, that the object A is combined with the object Bmay define that the object A is restricted in movement by the object Bin one or more of the X, Y, and Z-axis directions. In the presentdisclosure, an embodiment of the combining may be the sealing to bedescribed later. In the present disclosure, that the object A is sealedto the object B may define a state in which movement of a fluid is notallowed at the portion at which the object A and the object B areconnected. In the present disclosure, one or more objects, i.e., atleast a portion of the object A and the object B, may be defined asincluding a portion of the object A, the whole of the object A, aportion of the object B, the whole of the object B, a portion of theobject A and a portion of the object B, a portion of the object A andthe whole of the object B, the whole of the object A and a portion ofthe object B, and the whole of the object A and the whole of the objectB. In the present disclosure, that the plate A may be a wall definingthe space A may be defined as that at least a portion of the plate A maybe a wall defining at least a portion of the space A. That is, at leasta portion of the plate A may be a wall forming the space A, or the plateA may be a wall forming at least a portion of the space A. In thepresent disclosure, a central portion of the object may be defined as acentral portion among three divided portions when the object is dividedinto three sections based on the longitudinal direction of the object. Aperiphery of the object may be defined as a portion disposed at a leftor right side of the central portion among the three divided portions.The periphery of the object may include a surface that is in contactwith the central portion and a surface opposite thereto. The oppositeside may be defined as a border or edge of the object. Examples of theobject may include a vacuum adiabatic body, a plate, a heat transferresistor, a support, a vacuum space, and various components to beintroduced in the present disclosure. In the present disclosure, adegree of heat transfer resistance may indicate a degree to which anobject resists heat transfer and may be defined as a value determined bya shape including a thickness of the object, a material of the object,and a processing method of the object. The degree of the heat transferresistance may be defined as the sum of a degree of conductionresistance, a degree of radiation resistance, and a degree of convectionresistance. The vacuum adiabatic body according to the presentdisclosure may include a heat transfer path defined between spaceshaving different temperatures, or a heat transfer path defined betweenplates having different temperatures. For example, the vacuum adiabaticbody according to the present disclosure may include a heat transferpath through which cold is transferred from a low-temperature plate to ahigh-temperature plate. In the present disclosure, when a curved portionincludes a first portion extending in a first direction and a secondportion extending in a second direction different from the firstdirection, the curved portion may be defined as a portion that connectsthe first portion to the second portion (including 90 degrees).

In the present disclosure, the vacuum adiabatic body may optionallyinclude a component coupling portion. The component coupling portion maybe defined as a portion provided on the plate to which components areconnected to each other. The component connected to the plate may bedefined as a penetration portion disposed to pass through at least aportion of the plate and a surface component disposed to be connected toa surface of at least a portion of the plate. At least one of thepenetration component or the surface component may be connected to thecomponent coupling portion. The penetration component may be a componentthat defines a path through which a fluid (electricity, refrigerant,water, air, etc.) passes mainly. In the present disclosure, the fluid isdefined as any kind of flowing material. The fluid includes movingsolids, liquids, gases, and electricity. For example, the component maybe a component that defines a path through which a refrigerant for heatexchange passes, such as a suction line heat exchanger (SLHX) or arefrigerant tube. The component may be an electric wire that supplieselectricity to an apparatus. As another example, the component may be acomponent that defines a path through which air passes, such as a coldduct, a hot air duct, and an exhaust port. As another example, thecomponent may be a path through which a fluid such as coolant, hotwater, ice, and defrost water pass. The surface component may include atleast one of a peripheral adiabatic body, a side panel, injected foam, apre-prepared resin, a hinge, a latch, a basket, a drawer, a shelf, alight, a sensor, an evaporator, a front decor, a hotline, a heater, anexterior cover, or another adiabatic body.

As an example to which the vacuum adiabatic body is applied, the presentdisclosure may include an apparatus having the vacuum adiabatic body.Examples of the apparatus may include an appliance. Examples of theappliance may include home appliances including a refrigerator, acooking appliance, a washing machine, a dishwasher, and an airconditioner, etc. As an example in which the vacuum adiabatic body isapplied to the apparatus, the vacuum adiabatic body may constitute atleast a portion of a body and a door of the apparatus. As an example ofthe door, the vacuum adiabatic body may constitute at least a portion ofa general door and a door-in-door (DID) that is in direct contact withthe body. Here, the door-in-door may mean a small door placed inside thegeneral door. As another example to which the vacuum adiabatic body isapplied, the present disclosure may include a wall having the vacuumadiabatic body. Examples of the wall may include a wall of a building,which includes a window.

Hereinafter, the present disclosure will be described in detail withreference to the accompanying drawings. Each of the drawingsaccompanying the embodiment may be different from, exaggerated, orsimply indicated from an actual article, and detailed components may beindicated with simplified features. The embodiment should not beinterpreted as being limited only to the size, structure, and shapepresented in the drawings. In the embodiments accompanying each of thedrawings, unless the descriptions conflict with each other, someconfigurations in the drawings of one embodiment may be applied to someconfigurations of the drawings in another embodiment, and somestructures in one embodiment may be applied to some structures inanother embodiment. In the description of the drawings for theembodiment, the same reference numerals may be assigned to differentdrawings as reference numerals of specific components constituting theembodiment. Components having the same reference number may perform thesame function. For example, the first plate constituting the vacuumadiabatic body has a portion corresponding to the first space throughoutall embodiments and is indicated by reference number 10. The first platemay have the same number for all embodiments and may have a portioncorresponding to the first space, but the shape of the first plate maybe different in each embodiment. Not only the first plate, but also theside plate, the second plate, and another adiabatic body may beunderstood as well.

FIG. 1 is a perspective view of a refrigerator according to anembodiment, and FIG. 2 is a schematic view illustrating a vacuumadiabatic body used for a body and a door of the refrigerator. Referringto FIG. 1 , the refrigerator 1 includes a main body 2 provided with acavity 9 capable of storing storage goods and a door 3 provided to openand close the main body 2. The door 3 may be rotatably or slidablydisposed to open or close the cavity 9. The cavity 9 may provide atleast one of a refrigerating compartment and a freezing compartment. Acold source that supplies cold to the cavity may be provided. Forexample, the cold source may be an evaporator 7 that evaporates therefrigerant to take heat. The evaporator 7 may be connected to acompressor 4 that compresses the refrigerant evaporated to the coldsource. The evaporator 7 may be connected to a condenser 5 thatcondenses the compressed refrigerant to the cold source. The evaporator7 may be connected to an expander 6 that expands the refrigerantcondensed in the cold source. A fan corresponding to the evaporator andthe condenser may be provided to promote heat exchange. As anotherexample, the cold source may be a heat absorption surface of athermoelectric element. A heat absorption sink may be connected to theheat absorption surface of the thermoelectric element. A heat sink maybe connected to a heat radiation surface of the thermoelectric element.A fan corresponding to the heat absorption surface and the heatgeneration surface may be provided to promote heat exchange.

Referring to FIG. 2 , plates 10, 15, and 20 may be walls defining thevacuum space. The plates may be walls that partition the vacuum spacefrom an external space of the vacuum space. An example of the plates isas follows. The present disclosure may be any one of the followingexamples or a combination of two or more examples.

The plate may be provided as one portion or may be provided to includeat least two portions connected to each other. As a first example, theplate may include at least two portions connected to each other in adirection along a wall defining the vacuum space. Any one of the twoportions may include a portion (e.g., a first portion) defining thevacuum space. The first portion may be a single portion or may includeat least two portions that are sealed to each other. The other one ofthe two portions may include a portion (e.g., a second portion)extending from the first portion of the first plate in a direction awayfrom the vacuum space or extending in an inner direction of the vacuumspace. As a second example, the plate may include at least two layersconnected to each other in a thickness direction of the plate. Any oneof the two layers may include a layer (e.g., the first portion) definingthe vacuum space. The other one of the two layers may include a portion(e.g., the second portion) provided in an external space (e.g., a firstspace and a second space) of the vacuum space. In this case, the secondportion may be defined as an outer cover of the plate. The other one ofthe two layers may include a portion (e.g., the second portion) providedin the vacuum space. In this case, the second portion may be defined asan inner cover of the plate.

The plate may include a first plate 10 and a second plate 20. Onesurface of the first plate (the inner surface of the first plate)provides a wall defining the vacuum space, and the other surface (theouter surface of the first plate) of the first plate A wall defining thefirst space may be provided. The first space may be a space provided inthe vicinity of the first plate, a space defined by the apparatus, or aninternal space of the apparatus. In this case, the first plate may bereferred to as an inner case. When the first plate and the additionalmember define the internal space, the first plate and the additionalmember may be referred to as an inner case. The inner case may includetwo or more layers. In this case, one of the plurality of layers may bereferred to as an inner panel. One surface of the second plate (theinner surface of the second plate) provides a wall defining the vacuumspace, and the other surface (the outer surface of the first plate) ofthe second plate A wall defining the second space may be provided. Thesecond space may be a space provided in vicinity of the second plate,another space defined by the apparatus, or an external space of theapparatus. In this case, the second plate may be referred to as an outercase. When the second plate and the additional member define theexternal space, the second plate and the additional member may bereferred to as an outer case. The outer case may include two or morelayers. In this case, one of the plurality of layers may be referred toas an outer panel. The second space may be a space having a temperaturehigher than that of the first space or a space having a temperaturelower than that of the first space. Optionally, the plate may include aside plate 15. In FIG. 2 , the side plate may also perform a function ofa conductive resistance sheet 60 to be described later, according to thedisposition of the side plate. The side plate may include a portionextending in a height direction of a space defined between the firstplate and the second plate or a portion extending in a height directionof the vacuum space. One surface of the side plate may provide a walldefining the vacuum space, and the other surface of the side plate mayprovide a wall defining an external space of the vacuum space. Theexternal space of the vacuum space may be at least one of the firstspace or the second space or a space in which another adiabatic body tobe described later is disposed. The side plate may be integrallyprovided by extending at least one of the first plate or the secondplate or a separate component connected to at least one of the firstplate or the second plate.

The plate may optionally include a curved portion. In the presentdisclosure, the plate including a curved portion may be referred to as abent plate. The curved portion may include at least one of the firstplate, the second plate, the side plate, between the first plate and thesecond plate, between the first plate and the side plate, or between thesecond plate and the side plate. The plate may include at least one of afirst curved portion or a second curved portion, an example of which isas follows. First, the side plate may include the first curved portion.A portion of the first curved portion may include a portion connected tothe first plate. Another portion of the first curved portion may includea portion connected to the second curved portion. In this case, acurvature radius of each of the first curved portion and the secondcurved portion may be large. The other portion of the first curvedportion may be connected to an additional straight portion or anadditional curved portion, which are provided between the first curvedportion and the second curved portion. In this case, a curvature radiusof each of the first curved portion and the second curved portion may besmall. Second, the side plate may include the second curved portion. Aportion of the second curved portion may include a portion connected tothe second plate. The other portion of the second curved portion mayinclude a portion connected to the first curved portion. In this case, acurvature radius of each of the first curved portion and the secondcurved portion may be large. The other portion of the second curvedportion may be connected to an additional straight portion or anadditional curved portion, which are provided between the first curvedportion and the second curved portion. In this case, a curvature radiusof each of the first curved portion and the second curved portion may besmall. Here, the straight portion may be defined as a portion having acurvature radius greater than that of the curved portion. The straightportion may be understood as a portion having a perfect plane or acurvature radius greater than that of the curved portion. Third, thefirst plate may include the first curved portion. A portion of the firstcurved portion may include a portion connected to the side plate. Aportion connected to the side plate may be provided at a position thatis away from the second plate at a portion at which the first plateextends in the longitudinal direction of the vacuum space. Fourth, thesecond plate may include the second curved portion. A portion of thesecond curved portion may include a portion connected to the side plate.A portion connected to the side plate may be provided at a position thatis away from the first plate at a portion at which the second plateextends in the longitudinal direction of the vacuum space. The presentdisclosure may include a combination of any one of the first and secondexamples described above and any one of the third and fourth examplesdescribed above.

In the present disclosure, the vacuum space 50 may be defined as a thirdspace. The vacuum space may be a space in which a vacuum pressure ismaintained. In the present disclosure, the expression that a vacuumdegree of A is higher than that of B means that a vacuum pressure of Ais lower than that of B.

In the present disclosure, the seal 61 may be a portion provided betweenthe first plate and the second plate. Examples of sealing are asfollows. The present disclosure may be any one of the following examplesor a combination of two or more examples. The sealing may include fusionwelding for coupling the plurality of objects by melting at least aportion of the plurality of objects. For example, the first plate andthe second plate may be welded by laser welding in a state in which amelting bond such as a filler metal is not interposed therebetween, aportion of the first and second plates and a portion of the componentcoupling portion may be welded by high-frequency brazing or the like, ora plurality of objects may be welded by a melting bond that generatesheat. The sealing may include pressure welding for coupling theplurality of objects by a mechanical pressure applied to at least aportion of the plurality of objects. For example, as a componentconnected to the component coupling portion, an object made of amaterial having a degree of deformation resistance less than that of theplate may be pressure-welded by a method such as pinch-off.

A machine room 8 may be optionally provided outside the vacuum adiabaticbody. The machine room may be defined as a space in which componentsconnected to the cold source are accommodated. Optionally, the vacuumadiabatic body may include a port 40. The port may be provided at anyone side of the vacuum adiabatic body to discharge air of the vacuumspace 50. Optionally, the vacuum adiabatic body may include a conduit 64passing through the vacuum space 50 to install components connected tothe first space and the second space.

FIG. 3 is a view illustrating an example of a support that maintains thevacuum space. An example of the support is as follows. The presentdisclosure may be any one of the following examples or a combination oftwo or more examples.

The supports 30, 31, 33, and 35 may be provided to support at least aportion of the plate and a heat transfer resistor to be described later,thereby reducing deformation of at least some of the vacuum space 50,the plate, and the heat transfer resistor to be described later due toexternal force. The external force may include at least one of a vacuumpressure or external force excluding the vacuum pressure. When thedeformation occurs in a direction in which a height of the vacuum spaceis lower, the support may reduce an increase in at least one of radiantheat conduction, gas heat conduction, surface heat conduction, orsupport heat conduction, which will be described later. The support maybe an object provided to maintain a gap between the first plate and thesecond plate or an object provided to support the heat transferresistor. The support may have a degree of deformation resistancegreater than that of the plate or be provided to a portion having weakdegree of deformation resistance among portions constituting the vacuumadiabatic body, the apparatus having the vacuum adiabatic body, and thewall having the vacuum adiabatic body. According to an embodiment, adegree of deformation resistance represents a degree to which an objectresists deformation due to external force applied to the object and is avalue determined by a shape including a thickness of the object, amaterial of the object, a processing method of the object, and the like.Examples of the portions having the weak degree of deformationresistance include the vicinity of the curved portion defined by theplate, at least a portion of the curved portion, the vicinity of anopening defined in the body of the apparatus, which is provided by theplate, or at least a portion of the opening. The support may be disposedto surround at least a portion of the curved portion or the opening ormay be provided to correspond to the shape of the curved portion or theopening. However, it is not excluded that the support is provided inother portions. The opening may be understood as a portion of theapparatus including the body and the door capable of opening or closingthe opening defined in the body.

An example in which the support is provided to support the plate is asfollows. First, at least a portion of the support may be provided in aspace defined inside the plate. The plate may include a portionincluding a plurality of layers, and the support may be provided betweenthe plurality of layers. Optionally, the support may be provided to beconnected to at least a portion of the plurality of layers or beprovided to support at least a portion of the plurality of layers.Second, at least a portion of the support may be provided to beconnected to a surface defined on the outside of the plate. The supportmay be provided in the vacuum space or an external space of the vacuumspace. For example, the plate may include a plurality of layers, and thesupport may be provided as any one of the plurality of layers.Optionally, the support may be provided to support the other one of theplurality of layers. For example, the plate may include a plurality ofportions extending in the longitudinal direction, and the support may beprovided as any one of the plurality of portions. Optionally, thesupport may be provided to support the other one of the plurality ofparts. As further another example, the support may be provided in thevacuum space or the external space of the vacuum space as a separatecomponent, which is distinguished from the plate. Optionally, thesupport may be provided to support at least a portion of a surfacedefined on the outside of the plate. Optionally, the support may beprovided to support one surface of the first plate and one surface ofthe second plate, and one surface of the first plate and one surface ofthe second plate may be provided to face each other. Third, the supportmay be provided to be integrated with the plate. An example in which thesupport is provided to support the heat transfer resistor may beunderstood instead of the example in which the support is provided tosupport the plate. A duplicated description will be omitted.

An example of the support in which heat transfer through the support isdesigned to be reduced is as follows. First, at least a portion of thecomponents disposed in the vicinity of the support may be provided so asnot to be in contact with the support or provided in an empty spaceprovided by the support. Examples of the components include a tube orcomponent connected to the heat transfer resistor to be described later,an exhaust port, a getter port, a tube or component passing through thevacuum space, or a tube or component of which at least a portion isdisposed in the vacuum space. Examples of the empty space may include anempty space provided in the support, an empty space provided between theplurality of supports, and an empty space provided between the supportand a separate component that is distinguished from the support.Optionally, at least a portion of the component may be disposed in athrough-hole defined in the support, be disposed between the pluralityof bars, be disposed between the plurality of connection plates, or bedisposed between the plurality of support plates. Optionally, at least aportion of the component may be disposed in a spaced space between theplurality bars, be disposed in a spaced space between the plurality ofconnection plates, or be disposed in a spaced space between theplurality of support plates. Second, the adiabatic body may be providedon at least a portion of the support or in the vicinity of at least aportion of the support. The adiabatic body may be provided to be incontact with the support or provided so as not to be in contact with thesupport. The adiabatic body may be provided at a portion in which thesupport and the plate are in contact with each other. The adiabatic bodymay be provided on at least a portion of one surface and the othersurface of the support or be provided to cover at least a portion of onesurface and the other surface of the support. The adiabatic body may beprovided on at least a portion of a periphery of one surface and aperiphery of the other surface of the support or be provided to cover atleast a portion of a periphery of one surface and a periphery of theother surface of the support. The support may include a plurality ofbars, and the adiabatic body may be disposed on an area from a point atwhich any one of the plurality of bars is disposed to a midpoint betweenthe one bar and the surrounding bars. Third, when cold is transferredthrough the support, a heat source may be disposed at a position atwhich the heat adiabatic body described in the second example isdisposed. When a temperature of the first space is lower than atemperature of the second space, the heat source may be disposed on thesecond plate or in the vicinity of the second plate. When heat istransmitted through the support, a cold source may be disposed at aposition at which the heat adiabatic body described in the secondexample is disposed. When a temperature of the first space is higherthan a temperature of the second space, the cold source may be disposedon the second plate or in the vicinity of the second plate. As fourthexample, the support may include a portion having heat transferresistance higher than a metal or a portion having heat transferresistance higher than the plate. The support may include a portionhaving heat transfer resistance less than that of another adiabaticbody. The support may include at least one of a non-metal material, PPS,and glass fiber (GF), low outgassing PC, PPS, or LCP. This is done for areason in which high compressive strength, low outgassing, and a waterabsorption rate, low thermal conductivity, high compressive strength ata high temperature, and excellent workability are being capable ofobtained.

Examples of the support may be the bars 30 and 31, the connection plate35, the support plate 35, a porous material 33, and a filler 33. In thisembodiment, the support may include any one of the above examples, or anexample in which at least two examples are combined. As first example,the support may include bars 30 and 31. The bar may include a portionextending in a direction in which the first plate and the second plateare connected to each other to support a gap between the first plate andthe second plate. The bar may include a portion extending in a heightdirection of the vacuum space and a portion extending in a directionthat is substantially perpendicular to the direction in which the plateextends. The bar may be provided to support only one of the first plateand the second plate or may be provided both the first plate and thesecond plate. For example, one surface of the bar may be provided tosupport a portion of the plate, and the other surface of the bar may beprovided so as not to be in contact with the other portion of the plate.As another example, one surface of the bar may be provided to support atleast a portion of the plate, and the other surface of the bar may beprovided to support the other portion of the plate. The support mayinclude a bar having an empty space therein or a plurality of bars, andan empty space are provided between the plurality of bars. In addition,the support may include a bar, and the bar may be disposed to provide anempty space between the bar and a separate component that isdistinguished from the bar. The support may selectively include aconnection plate 35 including a portion connected to the bar or aportion connecting the plurality of bars to each other. The connectionplate may include a portion extending in the longitudinal direction ofthe vacuum space or a portion extending in the direction in which theplate extends. An XZ-plane cross-sectional area of the connection platemay be greater than an XZ-plane cross-sectional area of the bar. Theconnection plate may be provided on at least one of one surface and theother surface of the bar or may be provided between one surface and theother surface of the bar. At least one of one surface and the othersurface of the bar may be a surface on which the bar supports the plate.The shape of the connection plate is not limited. The support mayinclude a connection plate having an empty space therein or a pluralityof connection plates, and an empty space are provided between theplurality of connection plates. In addition, the support may include aconnection plate, and the connection plate may be disposed to provide anempty space between the connection plate and a separate component thatis distinguished from the connection plate. As a second example, thesupport may include a support plate 35. The support plate may include aportion extending in the longitudinal direction of the vacuum space or aportion extending in the direction in which the plate extends. Thesupport plate may be provided to support only one of the first plate andthe second plate or may be provided both the first plate and the secondplate. For example, one surface of the support plate may be provided tosupport a portion of the plate, and the other surface of the supportplate may be provided so as not to be in contact with the other portionof the plate. As another example, one surface of the support plate maybe provided to support at least a portion of the plate, and the othersurface of the support plate may be provided to support the otherportion of the plate. A cross-sectional shape of the support plate isnot limited. The support may include a support plate having an emptyspace therein or a plurality of support plates, and an empty space areprovided between the plurality of support plates. In addition, thesupport may include a support plate, and the support plate may bedisposed to provide an empty space between the support plate and aseparate component that is distinguished from the support plate. As athird example, the support may include a porous material 33 or a filler33. The inside of the vacuum space may be supported by the porousmaterial or the filler. The inside of the vacuum space may be completelyfilled by the porous material or the filler. The support may include aplurality of porous materials or a plurality of fillers, and theplurality of porous materials or the plurality of fillers may bedisposed to be in contact with each other. When an empty space isprovided inside the porous material, provided between the plurality ofporous materials, or provided between the porous material and a separatecomponent that is distinguished from the porous material, the porousmaterial may be understood as including any one of the aforementionedbar, connection plate, and support plate. When an empty space isprovided inside the filler, provided between the plurality of fillers,or provided between the filler and a separate component that isdistinguished from the filler, the filler may be understood as includingany one of the aforementioned bar, connection plate, and support plate.The support according to the present disclosure may include any one ofthe above examples or an example in which two or more examples arecombined.

Referring to FIG. 3 a , as an embodiment, the support may include a bar31 and a connection plate and support plate 35. The connection plate andthe supporting plate may be designed separately. Referring to FIG. 3 b ,as an embodiment, the support may include a bar 31, a connection plateand support plate 35, and a porous material 33 filled in the vacuumspace. The porous material 33 may have emissivity greater than that ofstainless steel, which is a material of the plate, but since the vacuumspace is filled, resistance efficiency of radiant heat transfer is high.The porous material may also function as a heat transfer resistor to bedescribed later. More preferably, the porous material may perform afunction of a radiation resistance sheet to be described later.Referring to FIG. 3 c , as an embodiment, the support may include aporous material 33 or a filler 33. The porous material 33 and the fillermay be provided in a compressed state to maintain a gap between thevacuum space. The film 34 may be provided in a state in which a hole ispunched as, for example, a PE material. The porous material 33 or thefiller may perform both a function of the heat transfer resistor and afunction of the support, which will be described later. More preferably,the porous material may perform both a function of the radiationresistance sheet and a function of the support to be described later.

FIG. 4 is a view for explaining an example of the vacuum adiabatic bodybased on heat transfer resistors 32, 33, 60, and 63 (e.g., thermalinsulator and a heat transfer resistance body). The vacuum adiabaticbody according to the present disclosure may optionally include a heattransfer resistor. An example of the heat transfer resistor is asfollows. The present disclosure may be any one of the following examplesor a combination of two or more examples.

The heat transfer resistors 32, 33, 60, and 63 may be objects thatreduce an amount of heat transfer between the first space and the secondspace or objects that reduce an amount of heat transfer between thefirst plate and the second plate. The heat transfer resistor may bedisposed on a heat transfer path defined between the first space and thesecond space or be disposed on a heat transfer path formed between thefirst plate and the second plate. The heat transfer resistor may includea portion extending in a direction along a wall defining the vacuumspace or a portion extending in a direction in which the plate extends.Optionally, the heat transfer resistor may include a portion extendingfrom the plate in a direction away from the vacuum space. The heattransfer resistor may be provided on at least a portion of the peripheryof the first plate or the periphery of the second plate or be providedon at least a portion of an edge of the first plate or an edge of thesecond plate. The heat transfer resistor may be provided at a portion,in which the through-hole is defined, or provided as a tube connected tothe through-hole. A separate tube or a separate component that isdistinguished from the tube may be disposed inside the tube. The heattransfer resistor may include a portion having heat transfer resistancegreater than that of the plate. In this case, adiabatic performance ofthe vacuum adiabatic body may be further improved. A shield 62 may beprovided on the outside of the heat transfer resistor to be insulated.The inside of the heat transfer resistor may be insulated by the vacuumspace. The shield may be provided as a porous material or a filler thatis in contact with the inside of the heat transfer resistor. The shieldmay be an adiabatic structure that is exemplified by a separate gasketplaced outside the inside of the heat transfer resistor. The heattransfer resistor may be a wall defining the third space.

An example in which the heat transfer resistor is connected to the platemay be understood as replacing the support with the heat transferresistor in an example in which the support is provided to support theplate. A duplicate description will be omitted. The example in which theheat transfer resistor is connected to the support may be understood asreplacing the plate with the support in the example in which the heattransfer resistor is connected to the plate. A duplicate descriptionwill be omitted. The example of reducing heat transfer via the heattransfer body may be applied as a substitute the example of reducing theheat transfer via the support, and thus, the same explanation will beomitted.

In the present disclosure, the heat transfer resistor may be one of aradiation resistance sheet 32, a porous material 33, a filler 33, and aconductive resistance sheet. In the present disclosure, the heattransfer resistor may include a combination of at least two of theradiation resistance sheet 32, the porous material 33, the filler 33,and the conductive resistance sheet. As a first example, the heattransfer resistor may include a radiation resistance sheet 32. Theradiation resistance sheet may include a portion having heat transferresistance greater than that of the plate, and the heat transferresistance may be a degree of resistance to heat transfer by radiation.The support may perform a function of the radiation resistance sheettogether. A conductive resistance sheet to be described later mayperform the function of the radiation resistance sheet together. As asecond example, the heat transfer resistor may include conductionresistance sheets 60 and 63. The conductive resistance sheet may includea portion having heat transfer resistance greater than that of theplate, and the heat transfer resistance may be a degree of resistance toheat transfer by conduction. For example, the conductive resistancesheet may have a thickness less than that of at least a portion of theplate. As another example, the conductive resistance sheet may includeone end and the other end, and a length of the conductive resistancesheet may be longer than a straight distance connecting one end of theconductive resistance sheet to the other end of the conductiveresistance sheet. As another example, the conductive resistance sheetmay include a material having resistance to heat transfer greater thanthat of the plate by conduction. As another example, the heat transferresistor may include a portion having a curvature radius less than thatof the plate.

Referring to FIG. 4 a , for example, a conductive resistance sheet maybe provided on a side plate connecting the first plate to the secondplate. Referring to FIG. 4 b , for example, a conductive resistancesheet 60 may be provided on at least a portion of the first plate andthe second plate. A connection frame 70 may be further provided outsidethe conductive resistance sheet. The connection frame may be a portionfrom which the first plate or the second plate extends or a portion fromwhich the side plate extends. Optionally, the connection frame 70 mayinclude a portion at which a component for sealing the door and the bodyand a component disposed outside the vacuum space such as the exhaustport and the getter port, which are required for the exhaust process,are connected to each other. Referring to FIG. 4 c , for example, aconductive resistance sheet may be provided on a side plate connectingthe first plate to the second plate. The conductive resistance sheet maybe installed in a through-hole passing through the vacuum space. Theconduit 64 may be provided separately outside the conductive resistancesheet. The conductive resistance sheet may be provided in a pleatedshape. Through this, the heat transfer path may be lengthened, anddeformation due to a pressure difference may be prevented. A separateshielding member for insulating the conductive resistance sheet 63 mayalso be provided. The conductive resistance sheet may include a portionhaving a degree of deformation resistance less than that of at least oneof the plate, the radiation resistance sheet, or the support. Theradiation resistance sheet may include a portion having a degree ofdeformation resistance less than that of at least one of the plate orthe support. The plate may include a portion having a degree ofdeformation resistance less than that of the support. The conductiveresistance sheet may include a portion having conductive heat transferresistance greater than that of at least one of the plate, the radiationresistance sheet, or the support. The radiation resistance sheet mayinclude a portion having radiation heat transfer resistance greater thanthat of at least one of the plate, the conductive resistance sheet, orthe support. The support may include a portion having heat transferresistance greater than that of the plate. For example, at least one ofthe plate, the conductive resistance sheet, or the connection frame mayinclude stainless steel material, the radiation resistance sheet mayinclude aluminum, and the support may include a resin material.

FIG. 5 is a graph for observing a process of exhausting the inside ofthe vacuum adiabatic body with a time and pressure when the support isused. An example of a vacuum adiabatic body vacuum exhaust processvacuum is as follows. The present disclosure may be any one of thefollowing examples or a combination of two or more examples.

While the exhaust process is being performed, an outgassing process,which is a process in which a gas of the vacuum space is discharged, ora potential gas remaining in the components of the vacuum adiabatic bodyis discharged, may be performed. As an example of the outgassingprocess, the exhaust process may include at least one of heating ordrying the vacuum adiabatic body, providing a vacuum pressure to thevacuum adiabatic body, or providing a getter to the vacuum adiabaticbody. In this case, it is possible to promote the vaporization andexhaust of the potential gas remaining in the component provided in thevacuum space. The exhaust process may include a process of cooling thevacuum adiabatic body. The cooling process may be performed after theprocess of heating or drying the vacuum adiabatic body is performed. Theprocess of heating or drying the vacuum adiabatic body process ofproviding the vacuum pressure to the vacuum adiabatic body may beperformed together. The process of heating or drying the vacuumadiabatic body and the process of providing the getter to the vacuumadiabatic body may be performed together. After the process of heatingor drying the vacuum adiabatic body is performed, the process of coolingthe vacuum adiabatic body may be performed. The process of providing thevacuum pressure to the vacuum adiabatic body and the process ofproviding the getter to the vacuum adiabatic body may be performed so asnot to overlap each other. For example, after the process of providingthe vacuum pressure to the vacuum adiabatic body is performed, theprocess of providing the getter to the vacuum adiabatic body may beperformed. When the vacuum pressure is provided to the vacuum adiabaticbody, a pressure of the vacuum space may drop to a certain level andthen no longer drop. Here, after stopping the process of providing thevacuum pressure to the vacuum adiabatic body, the getter may be input.As an example of stopping the process of providing the vacuum pressureto the vacuum adiabatic body, an operation of a vacuum pump connected tothe vacuum space may be stopped. When inputting the getter, the processof heating or drying the vacuum adiabatic body may be performedtogether. Through this, the outgassing may be promoted. As anotherexample, after the process of providing the getter to the vacuumadiabatic body is performed, the process of providing the vacuumpressure to the vacuum adiabatic body may be performed.

The time during which the vacuum adiabatic body vacuum exhaust processis performed may be referred to as a vacuum exhaust time. The vacuumexhaust time includes at least one of a time Δ1 during which the processof heating or drying the vacuum adiabatic body is performed, a time Δt2during which the process of maintaining the getter in the vacuumadiabatic body is performed, of a time Δt3 during which the process ofcooling the vacuum adiabatic body is performed. Examples of times Δt1,Δt2, and Δt3 are as follows. The present disclosure may be any one ofthe following examples or a combination of two or more examples. In thevacuum adiabatic body vacuum exhaust process, the time Δt1 may be a timet1 a or more and a time t1 b or less. As a first example, the time t1 amay be greater than or equal to about 0.2 hr and less than or equal toabout 0.5 hr. The time t1 b may be greater than or equal to about 1 hrand less than or equal to about 24.0 hr. The time Δt1 may be about 0.3hr or more and about 12.0 hr or less. The time Δt1 may be about 0.4 hror more and about 8.0 hr or less. The time Δt1 may be about 0.5 hr ormore and about 4.0 hr or less. In this case, even if the Δt1 is kept asshort as possible, the sufficient outgassing may be applied to thevacuum adiabatic body. For example, this case may include a case inwhich a component of the vacuum adiabatic body, which is exposed to thevacuum space, among the components of the vacuum adiabatic body, has anoutgassing rate (%) less than that of any one of the component of thevacuum adiabatic body, which is exposed to the external space of thevacuum space. Specifically, the component exposed to the vacuum spacemay include a portion having a outgassing rate less than that of athermoplastic polymer. More specifically, the support or the radiationresistance sheet may be disposed in the vacuum space, and the outgassingrate of the support may be less than that of the thermoplastic plastic.As another example, this case may include a case in which a component ofthe vacuum adiabatic body, which is exposed to the vacuum space, amongthe components of the vacuum adiabatic body, has a max operatingtemperature (° C.) greater than that of any one of the component of thevacuum adiabatic body, which is exposed to the external space of thevacuum space. In this case, the vacuum adiabatic body may be heated to ahigher temperature to increase in outgassing rate. For example, thecomponent exposed to the vacuum space may include a portion having anoperating temperature greater than that of the thermoplastic polymer. Asa more specific example, the support or the radiation resistance sheetmay be disposed in the vacuum space, and a use temperature of thesupport may be higher than that of the thermoplastic plastic. As anotherexample, among the components of the vacuum adiabatic body, thecomponent exposed to the vacuum space may contain more metallic portionthan a non-metallic portion. That is, a mass of the metallic portion maybe greater than a mass of the non-metallic portion, a volume of themetallic portion may be greater than a volume of the non-metallicportion, or an area of the metallic portion exposed to the vacuum spacemay be greater than an area exposed to the non-metallic portion of thevacuum space. When the components exposed to the vacuum space areprovided in plurality, the sum of the volume of the metal materialincluded in the first component and the volume of the metal materialincluded in the second component may be greater than that of the volumeof the non-metal material included in the first component and the volumeof the non-metal material included in the second component. When thecomponents exposed to the vacuum space are provided in plurality, thesum of the mass of the metal material included in the first componentand the mass of the metal material included in the second component maybe greater than that of the mass of the non-metal material included inthe first component and the mass of the non-metal material included inthe second component. When the components exposed to the vacuum spaceare provided in plurality, the sum of the area of the metal material,which is exposed to the vacuum space and included in the firstcomponent, and an area of the metal material, which is exposed to thevacuum space and included in the second component, may be greater thanthat of the area of the non-metal material, which is exposed to thevacuum space and included in the first component, and an area of thenon-metal material, which is exposed to the vacuum space and included inthe second component. As a second example, the time t1 a may be greaterthan or equal to about 0.5 hr and less than or equal to about 1 hr. Thetime t1 b may be greater than or equal to about 24.0 hr and less than orequal to about 65 hr. The time Δt1 may be about 1.0 hr or more and about48.0 hr or less. The time Δt1 may be about 2 hr or more and about 24.0hr or less. The time Δt1 may be about 3 hr or more and about 12.0 hr orless. In this case, it may be the vacuum adiabatic body that needs tomaintain the Δt1 as long as possible. In this case, a case opposite tothe examples described in the first example or a case in which thecomponent exposed to the vacuum space is made of a thermoplasticmaterial may be an example. A duplicated description will be omitted. Inthe vacuum adiabatic body vacuum exhaust process, the time Δt1 may be atime t1 a or more and a time t1 b or less. The time t2 a may be greaterthan or equal to about 0.1 hr and less than or equal to about 0.3 hr.The time t2 b may be greater than or equal to about 1 hr and less thanor equal to about 5.0 hr. The time Δt2 may be about 0.2 hr or more andabout 3.0 hr or less. The time Δt2 may be about 0.3 hr or more and about2.0 hr or less. The time Δt2 may be about 0.5 hr or more and about 1.5hr or less. In this case, even if the time Δt2 is kept as short aspossible, the sufficient outgassing through the getter may be applied tothe vacuum adiabatic body. In the vacuum adiabatic body vacuum exhaustprocess, the time Δt3 may be a time t3 a or more and a time t3 b orless. The time t2 a may be greater than or equal to about 0.2 hr andless than or equal to about 0.8 hr. The time t2 b may be greater than orequal to about 1 hr and less than or equal to about 65.0 hr. The tineΔt3 may be about 0.2 hr or more and about 48.0 hr or less. The time Δt3may be about 0.3 hr or more and about 24.0 hr or less. The time Δt3 maybe about 0.4 hr or more and about 12.0 hr or less. The time Δt3 may beabout 0.5 hr or more and about 5.0 hr or less. After the heating ordrying process is performed during the exhaust process, the coolingprocess may be performed. For example, when the heating or dryingprocess is performed for a long time, the time Δt3 may be long. Thevacuum adiabatic body according to the present disclosure may bemanufactured so that the time Δt1 is greater than the time Δt2, the timeΔt1 is less than or equal to the time Δt3, or the time Δt3 is greaterthan the time Δt2. The following relational expression is satisfied:Δt2<Δt1<Δt3. The vacuum adiabatic body according to an embodiment may bemanufactured so that the relational expression: Δt1+Δt2+Δt3 may begreater than or equal to about 0.3 hr and less than or equal to about 70hr, be greater than or equal to about 1 hr and less than or equal toabout 65 hr, or be greater than or equal to about 2 hr and less than orequal to about 24 hr. The relational expression: Δt1+Δt2+Δt3 may bemanufactured to be greater than or equal to about 3 hr and less than orequal to about 6 hr.

An example of the vacuum pressure condition during the exhaust processis as follows. The present disclosure may be any one of the followingexamples or a combination of two or more examples. A minimum value ofthe vacuum pressure in the vacuum space during the exhaust process maybe greater than about 1.8E-6 Torr. The minimum value of the vacuumpressure may be greater than about 1.8E-6 Torr and less than or equal toabout 1.0E-4 Torr, be greater than about 0.5E-6 Torr and less than orequal to about 1.0E-4 Torr, or be greater than about 0.5E-6 Torr andless than or equal to about 0.5E-5 Torr. The minimum value of the vacuumpressure may be greater than about 0.5E-6 Torr and less than about1.0E-5 Torr. As such, the limitation in which the minimum value of thevacuum pressure provided during the exhaust process is because, even ifthe pressure is reduced through the vacuum pump during the exhaustprocess, the decrease in vacuum pressure is slowed below a certainlevel. As an embodiment, after the exhaust process is performed, thevacuum pressure of the vacuum space may be maintained at a pressuregreater than or equal to about 1.0E-5 Torr and less than or equal toabout 5.0E-1 Torr. The maintained vacuum pressure may be greater than orequal to about 1.0E-5 Torr and less than or equal to about 1.0E-1 Torr,be greater than or equal to about 1.0E-5 Torr and less than or equal toabout 1.0E-2 Torr, be greater than or equal to about 1.0E-4 Torr andless than or equal to about 1.0E-2 Torr, or be greater than or equal toabout 1.0E-5 Torr and less than or equal to about 1.0E-3 Torr. As aresult of predicting the change in vacuum pressure with an acceleratedexperiment of two example products, one product may be provided so thatthe vacuum pressure is maintained below about 1.0E-04 Torr even afterabout 16.3 years, and the other product may be provided so that thevacuum pressure is maintained below about 1.0E-04 Torr even after about17.8 years. As described above, the vacuum pressure of the vacuumadiabatic body may be used industrially only when it is maintained belowa predetermined level even if there is a change over time.

FIG. 5 a is a graph of an elapsing time and pressure in the exhaustprocess according to an example, and FIG. 5 b is a view explainingresults of a vacuum maintenance test in the acceleration experiment ofthe vacuum adiabatic body of the refrigerator having an internal volumeof about 128 liters. Referring to FIG. 5 b , it is seen that the vacuumpressure gradually increases according to the aging. For example, it isconfirmed that the vacuum pressure is about 6.7E-04 Torr after about 4.7years, about 1.7E-03 Torr after about 10 years, and about 1.0E-02 Torrafter about 59 years. According to these experimental results, it isconfirmed that the vacuum adiabatic body according to the embodiment issufficiently industrially applicable.

FIG. 6 is a graph illustrating results obtained by comparing the vacuumpressure with gas conductivity. Referring to FIG. 6 , gas conductivitywith respect to the vacuum pressure depending on a size of the gap inthe vacuum space 50 was represented as a graph of effective heattransfer coefficient (eK). The effective heat transfer coefficient (eK)was measured when the gap in the vacuum space 50 has three values ofabout 3 mm, about 4.5 mm, and about 9 mm. The gap in the vacuum space 50is defined as follows. When the radiation resistance sheet 32 existsinside surface vacuum space 50, the gap is a distance between theradiation resistance sheet 32 and the plate adjacent thereto. When theradiation resistance sheet 32 does not exist inside surface vacuum space50, the gap is a distance between the first and second plates. It wasseen that, since the size of the gap is small at a point correspondingto a typical effective heat transfer coefficient of about 0.0196 W/mK,which is provided to an adiabatic material formed by foamingpolyurethane, the vacuum pressure is about 5.0E-1 Torr even when thesize of the gap is about 3 mm. Meanwhile, it was seen that the point atwhich reduction in adiabatic effect caused by the gas conduction heat issaturated even though the vacuum pressure decreases is a point at whichthe vacuum pressure is approximately 4.5E-3 Torr. The vacuum pressure ofabout 4.5E-3 Torr may be defined as the point at which the reduction inadiabatic effect caused by the gas conduction heat is saturated. Also,when the effective heat transfer coefficient is about 0.01 W/mK, thevacuum pressure is about 1.2E-2 Torr. An example of a range of thevacuum pressure in the vacuum space according to the gap is presented.The support may include at least one of a bar, a connection plate, or asupport plate. In this case, when the gap of the vacuum space is greaterthan or equal to about 3 mm, the vacuum pressure may be greater than orequal to A and less than about 5E-1 Torr, or be greater than about2.65E-1 Torr and less than about 5E-1 Torr. As another example, thesupport may include at least one of a bar, a connection plate, or asupport plate. In this case, when the gap of the vacuum space is greaterthan or equal to about 4.5 mm, the vacuum pressure may be greater thanor equal to A and less than about 3E-1 Torr, or be greater than about1.2E-2 Torr and less than about 5E-1 Torr. As another example, thesupport may include at least one of a bar, a connection plate, or asupport plate, and when the gap of the vacuum space is greater than orequal to about 9 mm, the vacuum pressure may be greater than or equal toA and less than about 1.0×10{circumflex over ( )}−1 Torr or be greaterthan about 4.5E-3 Torr and less than about 5E-1 Torr. Here, the A may begreater than or equal to about 1.0×10{circumflex over ( )}−6 Torr andless than or equal to about 1.0E-5 Torr. The A may be greater than orequal to about 1.0×10{circumflex over ( )}−5 Torr and less than or equalto about 1.0E-4 Torr. When the support includes a porous material or afiller, the vacuum pressure may be greater than or equal to about 4.7E-2Torr and less than or equal to about 5E-1 Torr. In this case, it isunderstood that the size of the gap ranges from several micrometers toseveral hundreds of micrometers. When the support and the porousmaterial are provided together in the vacuum space, a vacuum pressuremay be created and used, which is middle between the vacuum pressurewhen only the support is used and the vacuum pressure when only theporous material is used.

FIG. 7 is a view illustrating various examples of the vacuum space. Thepresent disclosure may be any one of the following examples or acombination of two or more examples.

Referring to FIG. 7 , the vacuum adiabatic body according to the presentdisclosure may include a vacuum space. The vacuum space 50 may include afirst vacuum space extending in a first direction (e.g., X-axis) andhaving a predetermined height. The vacuum space 50 may optionallyinclude a second vacuum space (hereinafter, referred to as a vacuumspace expansion portion) different from the first vacuum space in atleast one of the height or the direction. The vacuum space expansionportion may be provided by allowing at least one of the first and secondplates or the side plate to extend. In this case, the heat transferresistance may increase by lengthening a heat conduction path along theplate. The vacuum space expansion portion in which the second plateextends may reinforce adiabatic performance of a front portion of thevacuum adiabatic body. The vacuum space expansion portion in which thesecond plate extends may reinforce adiabatic performance of a rearportion of the vacuum adiabatic body, and the vacuum space expansionportion in which the side plate extends may reinforce adiabaticperformance of a side portion of the vacuum adiabatic body. Referring toFIG. 7 a , the second plate may extend to provide the vacuum spaceexpansion portion 51. The second plate may include a second portion 202extending from a first portion 201 defining the vacuum space 50 and thevacuum space expansion portion 51. The second portion 202 of the secondplate may branch a heat conduction path along the second plate toincrease in heat transfer resistance. Referring to FIG. 7 b , the sideplate may extend to provide the vacuum space expansion portion. The sideplate may include a second portion 152 extending from a first portion151 defining the vacuum space 50 and the vacuum space extension portion51. The second portion of the side plate may branch the heat conductionpath along the side plate to improve the adiabatic performance. Thefirst and second portions 151 and 152 of the side plate may branch theheat conduction path to increase in heat transfer resistance. Referringto FIG. 7 c , the first plate may extend to provide the vacuum spaceexpansion portion. The first plate may include a second portion 102extending from the first portion 101 defining the vacuum space 50 andthe vacuum space expansion portion 51. The second portion of the firstplate may branch the heat conduction path along the second plate toincrease in heat transfer resistance. Referring to FIG. 7 d , the vacuumspace expansion portion 51 may include an X-direction expansion portion51 a and a Y-direction expansion portion 51 b of the vacuum space. Thevacuum space expansion portion 51 may extend in a plurality ofdirections of the vacuum space 50. Thus, the adiabatic performance maybe reinforced in multiple directions and may increase by lengthening theheat conduction path in the plurality of directions to improve the heattransfer resistance. The vacuum space expansion portion extending in theplurality of directions may further improve the adiabatic performance bybranching the heat conduction path. Referring to FIG. 7 e , the sideplate may provide the vacuum space extension portion extending in theplurality of directions. The vacuum space expansion portion mayreinforce the adiabatic performance of the side portion of the vacuumadiabatic body. Referring to FIG. 7 f , the first plate may provide thevacuum space extension portion extending in the plurality of directions.The vacuum space expansion portion may reinforce the adiabaticperformance of the side portion of the vacuum adiabatic body.

FIG. 8 is a view for explaining another adiabatic body. The presentdisclosure may be any one of the following examples or a combination oftwo or more examples. Referring to FIG. 8 , the vacuum adiabatic bodyaccording to the present disclosure may optionally include anotheradiabatic body 90. Another adiabatic body may have a degree of vacuumless than that of the vacuum adiabatic body and be an object that doesnot include a portion having a vacuum state therein. The vacuumadiabatic body and another vacuum adiabatic body may be directlyconnected to each other or connected to each other through anintermedium. In this case, the intermedium may have a degree of vacuumless than that of at least one of the vacuum adiabatic body or anotheradiabatic body or may be an object that does not include a portionhaving the vacuum state therein. When the vacuum adiabatic body includesa portion in which the height of the vacuum adiabatic body is high and aportion in which the height of the vacuum adiabatic body is low, anotheradiabatic body may be disposed at a portion having the low height of thevacuum adiabatic body. Another adiabatic body may include a portionconnected to at least a portion of the first and second plates and theside plate. Another adiabatic body may be supported on the plate orcoupled or sealed. A degree of sealing between another adiabatic bodyand the plate may be lower than a degree of sealing between the plates.Another adiabatic body may include a cured adiabatic body (e.g., PUfoaming solution) that is cured after being injected, a premolded resin,a peripheral adiabatic body, and a side panel. At least a portion of theplate may be provided to be disposed inside another adiabatic body.Another adiabatic body may include an empty space. The plate may beprovided to be accommodated in the empty space. At least a portion ofthe plate may be provided to cover at least a portion of anotheradiabatic body. Another adiabatic body may include a member covering anouter surface thereof. The member may be at least a portion of theplate. Another adiabatic body may be an intermedium for connecting,supporting, bonding, or sealing the vacuum adiabatic body to thecomponent. Another adiabatic body may be an intermedium for connecting,supporting, bonding, or sealing the vacuum adiabatic body to anothervacuum adiabatic body. Another adiabatic body may include a portionconnected to a component coupling portion provided on at least a portionof the plate. Another adiabatic body may include a portion connected toa cover covering another adiabatic body. The cover may be disposedbetween the first plate and the first space, between the second plateand the second space, or between the side plate and a space other thanthe vacuum space 50. For example, the cover may include a portion onwhich the component is mounted. As another example, the cover mayinclude a portion that defines an outer appearance of another adiabaticbody. Referring to FIGS. 8 a to 8 f , another adiabatic body may includea peripheral adiabatic body. The peripheral adiabatic body may bedisposed on at least a portion of a periphery of the vacuum adiabaticbody, a periphery of the first plate, a periphery of the second plate,and the side plate. The peripheral adiabatic body disposed on theperiphery of the first plate or the periphery of the second plate mayextend to a portion at which the side plate is disposed or may extend tothe outside of the side plate. The peripheral adiabatic body disposed onthe side plate may extend to a portion at which the first plate or mayextend to the outside of the first plate or the second plate. Referringto FIGS. 8 g to 8 h , another adiabatic body may include a centraladiabatic body. The central adiabatic body may be disposed on at least aportion of a central portion of the vacuum adiabatic body, a centralportion of the first plate, or a central portion of the second plate.

Referring to FIG. 8 a , the peripheral adiabatic body 92 may be placedon the periphery of the first plate. The peripheral adiabatic body maybe in contact with the first plate. The peripheral adiabatic body may beseparated from the first plate or further extend from the first plate(indicated by dotted lines). The peripheral adiabatic body may improvethe adiabatic performance of the periphery of the first plate. Referringto FIG. 8 b , the peripheral adiabatic body may be placed on theperiphery of the second plate. The peripheral adiabatic body may be incontact with the second plate. The peripheral adiabatic body may beseparated from the second plate or further extend from the second plate(indicated by dotted lines). The periphery adiabatic body may improvethe adiabatic performance of the periphery of the second plate.Referring to FIG. 8 c , the peripheral adiabatic body may be disposed onthe periphery of the side plate. The peripheral adiabatic body may be incontact with the side plate. The peripheral adiabatic body may beseparated from the side plate or further extend from the side plate. Theperipheral adiabatic body may improve the adiabatic performance of theperiphery of the side plate Referring to FIG. 8 d , the peripheraladiabatic body 92 may be disposed on the periphery of the first plate.The peripheral adiabatic body may be placed on the periphery of thefirst plate constituting the vacuum space expansion portion 51. Theperipheral adiabatic body may be in contact with the first plateconstituting the vacuum space extension portion. The peripheraladiabatic body may be separated from or further extend to the firstplate constituting the vacuum space extension portion. The peripheraladiabatic body may improve the adiabatic performance of the periphery ofthe first plate constituting the vacuum space expansion portion.Referring to FIGS. 8 e and 8 f , in the peripheral adiabatic body, thevacuum space extension portion may be disposed on a periphery of thesecond plate or the side plate. The same explanation as in FIG. 8 d maybe applied. Referring to FIG. 8 g , the central adiabatic body 91 may beplaced on a central portion of the first plate. The central adiabaticbody may improve adiabatic performance of the central portion of thefirst plate. Referring to FIG. 8 h , the central adiabatic body may bedisposed on the central portion of the second plate. The centraladiabatic body may improve adiabatic performance of the central portionof the second plate.

FIG. 9 is a view for explaining a heat transfer path between first andsecond plates having different temperatures. An example of the heattransfer path is as follows. The present disclosure may be any one ofthe following examples or a combination of two or more examples.

The heat transfer path may pass through the extension portion at atleast a portion of the first portion 101 of the first plate, the firstportion 201 of the second plate, or the first portion 151 of the sideplate. The first portion may include a portion defining the vacuumspace. The extension portions 102, 152, and 202 may include portionsextending in a direction away from the first portion. The extensionportion may include a side portion of the vacuum adiabatic body, a sideportion of the plate having a higher temperature among the first andsecond plates, or a portion extending toward the side portion of thevacuum space 50. The extension portion may include a front portion ofthe vacuum adiabatic body, a front portion of the plate having a highertemperature among the first and second plates, or a front portionextending in a direction away from the front portion of the vacuum space50. Through this, it is possible to reduce generation of dew on thefront portion. The vacuum adiabatic body or the vacuum space 50 mayinclude first and second surfaces having different temperatures fromeach other. The temperature of the first surface may be lower than thatof the second surface. For example, the first surface may be the firstplate, and the second surface may be the second plate. The extensionportion may extend in a direction away from the second surface orinclude a portion extending toward the first surface. The extensionportion may include a portion, which is in contact with the secondsurface, or a portion extending in a state of being in contact with thesecond surface. The extension portion may include a portion extending tobe spaced apart from the two surfaces. The extension portion may includea portion having heat transfer resistance greater than that of at leasta portion of the plate or the first surface. The extension portion mayinclude a plurality of portions extending in different directions. Forexample, the extension portion may include a second portion 202 of thesecond plate and a third portion 203 of the second plate. The thirdportion may also be provided on the first plate or the side plate.Through this, it is possible to increase in heat transfer resistance bylengthening the heat transfer path. In the extension portion, theabove-described heat transfer resistor may be disposed. Anotheradiabatic body may be disposed outside the extending portion. Throughthis, the extension portion may reduce generation of dew on the secondsurface. Referring to FIG. 9 a , the second plate may include theextension portion extending to the periphery of the second plate. Here,the extension portion may further include a portion extending backward.Referring to FIG. 9 b , the side plate may include the extension portionextending to a periphery of the side plate. Here, the extension portionmay be provided to have a length that is less than or equal to that ofthe extension portion of the second plate. Here, the extension portionmay further include a portion extending backward. Referring to FIG. 9 c, the first plate may include the extension portion extending to theperiphery of the first plate. Here, the extension portion may extend toa length that is less than or equal to that of the extension portion ofthe second plate. Here, the extension portion may further include aportion extending backward.

FIG. 10 is a view for explaining a branch portion on the heat transferpath between first and second plates having different temperatures. Anexample of the branch portion is as follows. The present disclosure maybe any one of the following examples or a combination of two or moreexamples.

Optionally, the heat transfer path may pass through portions 205, 153,and 104, each of which is branched from at least a portion of the firstplate, the second plate, or the side plate. Here, the branched heattransfer path means a heat transfer path through which heat flows to beseparated in a different direction from the heat transfer path throughwhich heat flows along the plate. The branched portion may be disposedin a direction away from the vacuum space 50. The branched portion maybe disposed in a direction toward the inside of the vacuum space 50. Thebranched portion may perform the same function as the extension portiondescribed with reference to FIG. 9 , and thus, a description of the sameportion will be omitted. Referring to FIG. 10 a , the second plate mayinclude the branched portion 205. The branched portion may be providedin plurality, which are spaced apart from each other. The branchedportion may include a third portion 203 of the second plate. Referringto FIG. 10 b , the side plate may include the branched portion 153. Thebranched portion 153 may be branched from the second portion 152 of theside plate. The branched portion 153 may provide at least two. At leasttwo branched portions 153 spaced apart from each other may be providedon the second portion 152 of the side plate. Referring to FIG. 10 c ,the first plate may include the branched portion 104. The branchedportion may further extend from the second portion 102 of the firstplate. The branched portion may extend toward the periphery. Thebranched portion 104 may be bent to further extend. A direction in whichthe branched portion extends in FIGS. 10 a, 10 b, and 10 c may be thesame as at least one of the extension directions of the extensionportion described in FIG. 10 .

FIG. 11 is a view for explaining a process of manufacturing the vacuumadiabatic body.

Optionally, the vacuum adiabatic body may be manufactured by a vacuumadiabatic body component preparation process in which the first plateand the second plate are prepared in advance. Optionally, the vacuumadiabatic body may be manufactured by a vacuum adiabatic body componentassembly process in which the first plate and the second plate areassembled. Optionally, the vacuum adiabatic body may be manufactured bya vacuum adiabatic body vacuum exhaust process in which a gas in thespace defined between the first plate and the second plate isdischarged. Optionally, after the vacuum adiabatic body componentpreparation process is performed, the vacuum adiabatic body componentassembly process or the vacuum adiabatic body exhaust process may beperformed. Optionally, after the vacuum adiabatic body componentassembly process is performed, the vacuum adiabatic body vacuum exhaustprocess may be performed. Optionally, the vacuum adiabatic body may bemanufactured by the vacuum adiabatic body component sealing process (S3)in which the space between the first plate and the second plate issealed. The vacuum adiabatic body component sealing process may beperformed before the vacuum adiabatic body vacuum exhaust process (S4).The vacuum adiabatic body may be manufactured as an object with aspecific purpose by an apparatus assembly process (S5) in which thevacuum adiabatic body is combined with the components constituting theapparatus. The apparatus assembly process may be performed after thevacuum adiabatic body vacuum exhaust process. Here, the componentsconstituting the apparatus means components constituting the apparatustogether with the vacuum adiabatic body.

The vacuum adiabatic body component preparation process (S1) is aprocess in which components constituting the vacuum adiabatic body areprepared or manufactured. Examples of the components constituting thevacuum adiabatic body may include various components such as a plate, asupport, a heat transfer resistor, and a tube. The vacuum adiabatic bodycomponent assembly process (S2) is a process in which the preparedcomponents are assembled. The vacuum adiabatic body component assemblyprocess may include a process of disposing at least a portion of thesupport and the heat transfer resistor on at least a portion of theplate. For example, the vacuum adiabatic body component assembly processmay include a process of disposing at least a portion of the support andthe heat transfer resistor between the first plate and the second plate.Optionally, the vacuum adiabatic body component assembly process mayinclude a process of disposing a penetration component on at least aportion of the plate. For example, the vacuum adiabatic body componentassembly process may include a process of disposing the penetrationcomponent or a surface component between the first and second plates.After the penetration component may be disposed between the first plateand the second plate, the penetration component may be connected orsealed to the penetration component coupling portion.

An example of a vacuum adiabatic body vacuum exhaust process vacuum isas follows. The present disclosure may be any one of the, examples or acombination of two or more examples. The vacuum adiabatic body vacuumexhaust process may include at least one of a process of inputting thevacuum adiabatic body into an exhaust passage, a getter activationprocess, a process of checking vacuum leakage and a process of closingthe exhaust port. The process of forming the coupling part may beperformed in at least one of the vacuum adiabatic body componentpreparation process, the vacuum adiabatic body component assemblyprocess, or the apparatus assembly process. Before the vacuum adiabaticbody exhaust process is performed, a process of washing the componentsconstituting the vacuum adiabatic body may be performed. Optionally, thewashing process may include a process of applying ultrasonic waves tothe components constituting the vacuum adiabatic body or a process ofproviding ethanol or a material containing ethanol to surfaces of thecomponents constituting the vacuum adiabatic body. The ultrasonic wavemay have an intensity between about 10 kHz and about 50 kHz. A contentof ethanol in the material may be about 50% or more. For example, thecontent of ethanol in the material may range of about 50% to about 90%.As another example, the content of ethanol in the material may range ofabout 60% to about 80%. As another example, the content of ethanol inthe material may be range of about 65% to about 75%. Optionally, afterthe washing process is performed, a process of drying the componentsconstituting the vacuum adiabatic body may be performed. Optionally,after the washing process is performed, a process of heating thecomponents constituting the vacuum adiabatic body may be performed.

The contents described in FIGS. 1 to 11 may be applied to all orselectively applied to the embodiments described with reference to thedrawings below.

As an embodiment, an example of a process associated with the support isas follows. The present disclosure may be any one of the followingexamples or a combination of two or more examples. The vacuum adiabaticbody component preparation process may include a process ofmanufacturing the support. Before the vacuum adiabatic body vacuumexhaust process is performed, the process of manufacturing the supportmay be performed. For example, the support may be manufactured throughthe injection. Optionally, before the vacuum adiabatic body vacuumexhaust process is performed, the process of washing the support may beperformed. Before the vacuum adiabatic body vacuum exhaust process isperformed or while the vacuum adiabatic body vacuum exhaust process isperformed, a process of storing the support under a predeterminedcondition may be performed. For example, before the vacuum adiabaticbody vacuum exhaust process is performed, a primary storage process maybe performed, and while the vacuum adiabatic body vacuum exhaust processis performed, a secondary storage process may be performed. For anotherexample, during the vacuum adiabatic body vacuum exhaust process isperformed, the storage process may be performed. Examples of the storageprocess are as follows. As a first example, the storage process mayinclude a process of drying or heating the support. Thus, the outgassingform the support may be performed. The heating temperature may begreater than a predetermined reference temperature and less than amelting point of the support. The predetermined reference temperaturemay be a temperature between about 10 degrees and about 40 degrees. Theheating temperature may be greater than about 80 degrees and less thanabout 280 degrees. The heating temperature may be greater than about 100degrees and less than about 260 degrees. The heating temperature may begreater than about 120 degrees and less than about 240 degrees. Theheating temperature may be greater than about 140 degrees and less thanabout 220 degrees. The heating temperature may be greater than about 160degrees and less than about 200 degrees. The heating temperature may begreater than about 170 degrees and less than about 190 degrees. Theheating temperature in the primary storage process may be less than theheating temperature in the secondary storage process. Optionally, thestorage process may include a process of cooling the support. After theprocess of drying or heating the support is performed, the process ofcooling the support may be performed. As a second example, the storageprocess may include a process of storing the support in a state of atemperature less than atmospheric pressure. Thus, the outgassing formthe support may be performed. The storage pressure may be less than apressure in a vacuum state in which the internal space between the firstplate and the second plate is maintained. The storage pressure may begreater than 10E-10 torr and less than atmospheric pressure. The storagepressure may be greater than 10E-9 torr and less than atmosphericpressure. The storage pressure may be greater than 10E-8 torr and lessthan atmospheric pressure. The storage pressure may be greater than10E-7 torr and less than atmospheric pressure. The storage pressure maybe in a state of being greater than 10E-3 torr and less than atmosphericpressure. The storage pressure may be in a state of being greater than10E-2 torr and less than atmospheric pressure. The storage pressure maybe in a state of being greater than 0.5E-1 torr and less thanatmospheric pressure. The storage pressure may be in a state of beinggreater than 0.5E-1 torr and less than 3E-1 torr. The storage pressurein the primary storage process may be higher than the storage pressurein the secondary storage process. Optionally, the storage process mayinclude a storage process at the atmospheric pressure. After the processof storing the support in a state of the pressure less than theatmospheric pressure is performed, the process of storing the support inthe state of the atmospheric pressure may be performed.

Optionally, before the vacuum adiabatic body vacuum exhaust process isperformed, a process of coupling a plurality of portions of the supportto each other may be performed. For example, the coupling process mayinclude a process of coupling a bar of the support to a connectionplate. As another example, the coupling process may include a process ofcoupling the bar of the support to the support plate.

The process associated with the support may optionally include a processrelated to the process of storing the support under the predeterminedcondition. An example of a process sequence related to the process inwhich the support is stored under the predetermined condition is asfollows. The present disclosure may be any one of the following examplesor a combination of two or more examples. After the process of drying orheating the support is performed, at least one of the process of storingthe support at the temperature less than atmospheric pressure, theprocess of cooling the support, or the process of storing the support atthe atmospheric pressure may be performed. After the process of storingthe support at the pressure less than the atmospheric pressure isperformed, at least one of the process of drying or heating the support,the process of cooling the support, or the process of storing thesupport at the atmospheric pressure may be performed. The process ofdrying or heating the support and the process of storing the support atthe pressure less than the atmospheric pressure may be performed at thesame time. The process of drying or heating the support and the processof storing the support at the atmospheric pressure may be performed atthe same time. The process of storing the support under the conditionless than atmospheric pressure and the process of cooling the supportmay be performed at the same time.

The process associated with the support may optionally include a processrelated to the process in which the support is coupled. An example of aprocess sequence related to the process in which the support is coupledis as follows. The present disclosure may be any one of the followingexamples or a combination of two or more examples. Before the couplingprocess is performed, a process of providing a separate componentseparated from the support in a space provided inside the support may beperformed. For example, the component may include a heat transferresistor. After the coupling process is performed, the support may bepackaged or stored in a vacuum state. After the process of storing thesupport under the predetermined condition is performed, a process ofcoupling a plurality of portions of the support to each other may beperformed.

In relation to the support, the process may optionally include a processrelated to the process of washing the support. An example of a processsequence related to the process of washing the support is as follows.The present disclosure may be any one of the following examples or acombination of two or more examples. After the process of manufacturingthe support is performed, at least one of the process of washing thesupport, the process of storing the support under the predeterminedcondition, or the process of coupling the plurality of portions of thesupport to each other may be performed. After the process of washing thesupport is performed, at least one of the process of storing the supportunder the predetermined condition or the process of coupling theplurality of portions of the support to each other may be performed.Before the process of washing the support is performed, at least one ofthe process of storing the support under the predetermined condition orthe process of coupling the plurality of portions of the support to eachother may be performed.

The process associated with the support may optionally include a processrelated to the process of providing the support to plate. An example ofa process sequence related to the process of providing the support tothe plate is as follows. The present disclosure may be any one of thefollowing examples or a combination of two or more examples. Before thevacuum adiabatic body exhaust process is performed, the support may beprovided in a space between the first plate and the second plate. Beforethe vacuum adiabatic body exhaust process is performed, the support maybe provided at the inside of the plate or the surface of the plate.Before the vacuum adiabatic body vacuum exhaust process is performed,the support may be coupled to the plate. After the component couplingportion is provided on a portion of the plate, the support may beprovided in the space between the first plate and the second plate.

FIG. 12 is a perspective view illustrating a support according toanother embodiment, and FIG. 13 is an exploded perspective viewillustrating the support of FIG. 12 .

Referring to FIGS. 12 and 13 , the support 30 b of this embodiment mayinclude a first support 350 b, a second support 360 b coupled to thefirst support 350 b, and at least one radiation resistance sheet 32disposed between the first support 350 b and the second support 360 b.At least one of the first support 350 b and the second support 360 b maysupport the radiation resistance sheet 32 while passing through theradiation resistance sheet 32. If the support 30 b includes a pluralityof radiation resistance sheets 32, the first support 350 b and thesecond support 360 b may support a plurality of radiation resistancesheets 32 in a state in which the plurality of radiation resistancesheets 32 are spaced apart from each other. FIG. 13 illustrates threeradiation resistance sheets 32 as an example.

The first support 350 b may be in contact with the inner case 110. Thesecond support 360 b may contact the outer case 210. Conversely, thefirst support 350 b may contact the outer case 210, and the secondsupport 360 b may contact the inner case 110.

The second support 360 b may be disposed by coupling a plurality ofsecond support bodies 360 b 1, 360 b 2, and 360 b 3 having the samestructure to each other in the Z-axis direction (for example, thevertical direction (longitudinal direction) of the door). The firstsupport 350 b may include the first type of first support body 350 b 1,the second type of first support body 350 b 2 and 350 b 3, and the thirdtype of the first support body 350 b 4. The first to third types ofsupport bodies 350 b 1, 350 b 2, 350 b 3, and 350 b 4 have the samelength in the X-axis direction. A length in the Z-axis direction of thesecond type of first support body 350 b 2, and 350 b 3 is longer thanthe length of each of the first type of first support body 350 b 1 andthe third type of first support body 350 b 4. A first type of firstsupport body 350 b 1 may be coupled to the second support body 360 b 1arranged first among the plurality of second support bodies 360 b 1, 360b 2, and 360 b 3. In addition, a portion of the second type of firstsupport body 350 b 2 may be coupled to the firstly arranged secondsupport body 360 b. In this case, the first type of first support body350 b 1 and the second type of first support body 350 b 2 may be spacedapart from each other in the Z-axis direction. In the second supportbody 360 b 2 arranged secondly from the plurality of second supportbodies 360 b 1, 360 b 2, and 360 b 3, another portion of a second typeof the first support body 350 b 2 and a portion of another second typeof the first support body 350 b 3 may be coupled to each other. In thesecond support body 360 b 3 arranged thirdly from the plurality ofsecond support bodies 360 b 1, 360 b 2, and 360 b 3, another portion ofthe another second type of the first support body 350 b 3 and the thirdtype of the first support body 350 b 4 may be coupled to each other.

FIG. 14 is a cross-sectional view illustrating a state in which thefirst support and the second support are coupled to each other.

Referring to FIGS. 13 and 14 , the first support 350 b may include afirst support plate 351 formed in a grid shape. In other words, thefirst support plate 351 may include a plurality of through-holes 352.For example, two first extension portions extending in the Z-axisdirection and two second extension portions extending in the X-axisdirection may define one through-hole 352. A plurality of through-holes352 may be arranged in plurality in each of the X-axis and the Z-axis.

The first support 350 b may include a plurality of spacer couplingportions 356 extending from the first support plate 351 in a directioncrossing the first support plate 351. For example, the plurality ofspacer coupling portions 356 may extend in the Y-axis direction from thefirst support plate 351. Each spacer coupling portion 356 may bepositioned at a portion where the first extension portion and the secondextension portion are connected to each other. The plurality of spacercoupling portions 356 may be divided based on a length in the Y-axisdirection, for example, a height. The plurality of spacer couplingportions 356 may include some or all of the first spacer couplingportion 356 a, the second spacer coupling portion 356 b, and the thirdspacer coupling portion 356 c. Hereinafter, it will be described as anexample that the plurality of spacer coupling portions 356 include afirst spacer coupling portion 356 a, a second spacer coupling portion356 b, and a third spacer coupling portion 356 c. The second spacercoupling portion 356 b is longer than the first spacer coupling portion356 a, and the third spacer coupling portion 356 c is longer than thesecond spacer coupling portion 356 b. Among the plurality of spacercoupling portions 356, the number of first spacer coupling portions 356a is the largest and the number of second spacer coupling portions 356 bis the smallest. In the first support 350 b, some rows and some columnsmay include only the first spacer coupling portion 356 a. In the firstsupport 350 b, some other rows may include only the first spacercoupling portion 356 a and the second spacer coupling portion 356 b. Inthis case, a plurality of first spacer coupling portions 356 a may beprovided between the two second spacer coupling portions 356 b spacedapart from each other. In the first support 350 b, another partial rowmay include only the first spacer coupling portion 356 a and the thirdspacer coupling portion 356 c. In this case, a plurality of first spacercoupling portions 356 a may be provided between the two third spacercoupling portions 356 c spaced apart from each other. In the firstsupport 350 b, some other columns may include all of the first spacercoupling portion 356 a, the second spacer coupling portion 356 b, andthe third spacer coupling portion 356 c. In a column including thesecond spacer coupling portion 356 b and the third spacer couplingportion 356 c, at least two of the third spacer coupling portions 356 cmay be positioned to be adjacent to each other. Two columns includingonly the third spacer coupling portion 356 c and the first spacercoupling portion 356 a may be positioned adjacent to each other. In acolumn including the second spacer coupling portion 356 b and the thirdspacer coupling portion 356 c, at least one first spacer couplingportion 356 a is provided between the second spacer coupling portion 356b and the third spacer coupling portion 356 c.

The second support 360 b may include a second support plate 361 having agrid shape. The second support plate 361 may include a plurality ofthrough-holes 362. For example, two first extension portions extendingin the Z-axis direction and two second extension portions extending inthe X-axis direction may define one through-hole 362. A plurality ofthrough-holes 362 may be arranged in plurality in each of the X-axis andthe Z-axis. The second support 360 b may include a plurality of spacers366 extending from the second support plate 361 in a direction crossingthe second support plate 361. For example, the plurality of spacers 366may extend from the second support plate 361 in the Y-axis direction.Each spacer 366 may be positioned at a portion where the first extensionportion and the second extension portion are connected. Each of theplurality of spacers 366 may be coupled to each of the plurality ofspacer coupling portions 356. In the present embodiment, one bar iscompleted by coupling one spacer 366 and one spacer coupling portion356. Accordingly, the plurality of bars are completed by coupling thefirst support 350 b and the second support 360 b of the presentembodiment. In the above description, it has been described that thefirst support 350 b includes the spacer coupling portion 356 and thesecond support 360 b includes the spacer 366, but on the contrary, it isalso possible that the first support 350 b includes the spacer 366 andthe second support 360 b includes a spacer coupling portion. In anycase, any one of the spacers is coupled with any one of the spacercoupling portions to form a bar.

The plurality of spacers 366 may include some or all of the first spacer366 a, the second spacer 366 b, and the third spacer 366 c. Hereinafter,it will be described as an example that the plurality of spacers 366includes a first spacer 366 a, a second spacer 366 b, and a third spacer366 c. In the second support 360 b, some rows and some columns mayinclude only the third spacer 366 c. In the second support 360 b, someother rows may include only the third spacer 366 c and the first spacer366 a. In the second support 360 b, another partial row may include onlythe third spacer 366 c and the second spacer 366 b. In the secondsupport 360 b, some columns may include all of the first spacer 366 a,the second spacer 366 b, and the third spacer 366 c. In a columnincluding the first spacer 366 a and the second spacer 366 b, the firstspacer 366 a and the second spacer 366 b may be located adjacent to eachother. In the second support 360 b, the number of rows including thethird spacer 366 c is greater than the number of rows including thefirst spacer 366 a and the third spacer 366 c. In the second support 360b, the number of rows including the third spacer 366 c is greater thanthe number of rows including the second spacer 366 b and the thirdspacer 366 c. In the second support 360 b, the number of columnsincluding the third spacers 366 c is greater than the number of columnsincluding the first spacer 366 a to the third spacer 366 c.

FIG. 15 is an enlarged view illustrating part A of FIG. 14 , and FIG. 16is an enlarged view illustrating part B of FIG. 14 . FIG. 17 is anenlarged view illustrating part C of FIG. 14 , and FIG. 18 is anenlarged view illustrating part D of FIG. 14 .

Referring to FIGS. 14 to 18 , the first spacer 366 a of the secondsupport 360 b may be coupled to the first spacer coupling portion 356 aof the first support 350 b. A first bar is defined by the coupling ofthe first spacer 366 a and the first spacer coupling portion 356 a. Thesecond spacer 366 b of the second support 360 b may be coupled to thesecond spacer coupling portion 356 b of the first support 350 b. Asecond bar is defined by coupling to the second spacer 366 b and thesecond spacer coupling portion 356 a. The third spacer 366 c of thesecond support 360 b may be coupled to the third spacer coupling portion356 c of the first support 350 b. A third bar is defined by coupling tothe third spacer 366 c and the third spacer coupling portion 356 b. Thethird spacer 366 c of the second support 360 b may be coupled to thefirst spacer coupling portion 356 a of the first support 350 b. A fourthbar is defined by coupling to the third spacer 366 c and the firstspacer coupling portion 356 a. In other words, In the presentembodiment, four types of bars may be defined by the coupling of thefirst support 350 b and the second support 360 b. In the description ofFIGS. 14 to 18 , “a length” means a length in the arrangement directionof the first support plate 351 and the second support plate 361.

Meanwhile, the support 30 b may include a first sheet 32 s 1, a secondsheet 32 s 2 spaced apart from the first sheet 32 s 1, and a third sheet32 s 3 spaced apart from the second sheet 32 s 2. The first sheet 32 s 1to the third sheet 32 s 1 are arranged to be spaced apart in the Y-axisdirection, the first sheet 32 s 1 is located closest to the firstsupport plate 351, and the third sheet 32 s 3 is located closest to thesecond support plate 361. The second sheet 32 s 2 is positioned betweenthe first sheet 32 s 1 and the third sheet 32 s 3.

FIG. 15 illustrates a first bar. Referring to FIG. 15 , the first spacer366 a may pass through the first holes 32 s 11, 32 s 21, and 32 s 31formed in each of the plurality of sheets 32 s 1, 32 s 2, and 32 s 3 tocouple to the first spacer coupling portion 356 a. In a state in whichthe first spacer 366 a is coupled to the first spacer coupling portion356 a, the first spacer 366 a supports the first sheet 32 s 1. On theother hand, the first spacer 366 a and the first spacer coupling portion356 a are spaced apart from the second sheet 32 s 2 and the third sheet32 s 3. Accordingly, the first bar supports the first sheet 32 s 1 anddoes not support the second sheet 32 s 2 and the third sheet 32 s 3. Thelength of the first spacer 366 a is longer than the length of the firstspacer coupling portion 356 a. A part of the first spacer 366 a may beinserted into the first spacer coupling portion 356 a. For example, thefirst spacer coupling portion 356 a may be formed in a cylindricalshape. The outer diameter Db1 of the first spacer coupling portion 356 amay be greater than the maximum value Dc3 of the outer diameter of thefirst spacer 366 a. The outer diameter Db1 of the first spacer couplingportion 356 a may decrease as the distance from the first support plate351 increases. An inner diameter Db3 of the first spacer couplingportion 356 a may be the same as a diameter of a portion of the firstspacer 366 a. The diameter Db2 of the entrance of the first spacercoupling portion 356 a is may be larger than the inner diameter Db3 ofthe first spacer coupling portion 356 a such that the first spacer 366 acan be easily inserted into the first spacer coupling portion 356 a. Inother words, a portion of the inner peripheral surface of the firstspacer coupling portion 356 a may have an inner diameter increasingtoward the entrance. Due to the change in the inner diameter, a portionof the inner peripheral surface of the first spacer coupling portion 356a is inclined by a first angle with the vertical line (the line in theY-axis direction of FIG. 13 ). By designing the shape of the firstspacer coupling portion 356 a, the mold may be easily separated from thefirst spacer coupling portion 356 a during the injection molding processof the first support 350 b. The first spacer 366 a may include a secondportion 366 a 2 extending from the second support plate 361 and a firstportion 366 a 1 extending from the second portion 366 a 2 and having adiameter smaller than a diameter of the second portion 366 a 2. Astepped portion 366 a 3 may be formed between the first portion 366 a 1and the second portion 366 a 2 due to a difference in diameter betweenthe first portion 366 a 1 and the second portion 366 a 2. The length ofthe second part 366 a 2 is formed to be longer than the length of thefirst portion 366 a 1. A length of the first portion 366 a 1 is longerthan a length of the first spacer coupling portion 356 a. The firstportion 366 a 1 may be press-fitted into the first spacer couplingportion 356 a. When the first portion 366 a 1 is inserted into the firstspacer coupling portion 356 a, the first spacer coupling portion 356 amay be spaced apart from the stepped portion 366 a 3. A diameter Dc2(minimum diameter) of a point adjacent to the first portion 366 a 1 inthe second portion 366 a 2 is smaller than a diameter Dc3 (maximumdiameter) of a point adjacent to the second support plate 361. Forexample, the diameter of the second portion 366 a 2 may decrease towardthe first spacer coupling portion 356 a. Due to the change in diameterof the second part 366 a 2, the outer peripheral surface of the secondpart 366 a 2 is inclined by a second angle with respect to the verticalline (the expansion line in the Y direction in FIG. 13 ). In this case,the second angle is smaller than the first angle. A diameter Dc2 of apoint adjacent to the first portion 366 a 1 in the second portion 366 a2 is greater than a diameter Dc1 of the first portion 366 a 1. Thediameter of the first portion 366 a 1 may decrease as the distance fromthe second portion 366 a 2 increases. Alternatively, the first portion366 a 1 may include a first part whose diameter decreases as thedistance from the second part 366 a 2 increases and a second part thatextends from the first portion and has a constant diameter. In thiscase, the second part may be coupled to the first spacer couplingportion 356 a. The diameter reduction rate of the section in which thediameter is variable in the first portion 366 a 1 may be smaller thanthe diameter reduction rate of the section in which the diameter isvariable in the second portion 366 a 2. Alternatively, the first portion366 a 1 may have a constant diameter as a whole. By designing the shapeof the first spacer 366 a, the mold can be easily separated from thefirst spacer 366 a during the injection molding process of the secondsupport 360 b. A diameter Da2 of a point adjacent to the first portion366 a 1 in the second portion 366 a 2 is greater than an inner diameterDb3 of the first spacer coupling portion 356 a. In addition, thediameter of the first hole 32 s 11 of the first sheet 32 s 1 is greaterthan the diameter Dc1 of the first portion 366 a 1 and smaller than theminimum diameter Dc2 of the second portion 366 a 2. Accordingly, thestepped portion 366 a 3 of the first spacer 366 a may support the firstsheet 32 s 1. In this case, the first sheet 32 s 1 may be in contactwith the first spacer coupling portion 356 a. In the present embodiment,the portion in contact with the first sheet 32 s 1 may be described assupporting the first sheet 32 s 1. For example, the surface facing thesecond support plate 361 from the first spacer coupling portion 356 aand the stepped part 366 a 3 of the first spacer 366 a may support thefirst sheet 32 s 1. In this case, the area of the surface on which thefirst spacer 366 a supports the first sheet 32 s 1 may be different fromthe area of the surface on which the first spacer coupling portion 356 asupports the first sheet 32 s 1. For example, a support area of one ofthe first spacer 366 a and the first spacer coupling portion 356 a,which has a longer length may be smaller than a support area of one ofthe first spacer 366 a and the first spacer coupling portion 356 a,which has a shorter length. In this case, heat conduction in a directionpassing through the first bar may be reduced. Specifically, the area ofthe surface on which the first spacer coupling portion 356 a supportsthe first sheet 32 s 1 is greater than the area of the surface on whichthe first spacer 366 a supports the first sheet 32 s 1. After the firstspacer 366 b passes through the first sheet 32 s 1, when being coupledto the first spacer coupling portion 356 a, since the first spacercoupling portion 356 a has a large contact area with the first sheet 32s 1, the bending phenomenon of the first sheet 32 s 1 may be minimized.Although not limited, the difference between the outer diameter Db1 andthe inner diameter Db2 of a side of the entrance of the first spacercoupling portion 356 a is smaller than the diameter Dc1 of the firstportion 366 a 1, and may be greater than ⅓ of the diameter Dc1 of thefirst portion 366 a 1. Due to this structure, while the shape of thefirst spacer coupling portion 356 a is maintained during the injectionprocess of the first support 350 b, the strength can be secured to acertain level or more. The diameters of the first holes 32 s 21 and 32 s31 of the second sheet 32 s 2 and the third sheet 32 s 3 are larger thanthe maximum diameter Dc3 of the second part 366 a 2. Accordingly, thesecond sheet 32 s 2 and the third sheet 32 s 3 are spaced apart from thefirst spacer 366 a. As such, when the second sheet 32 s 2 and the thirdsheet 32 s 3 are spaced apart from the first bar in addition to thefirst sheet 32 s 1 supported by the first bar, heat conduction betweenthe first bar and the second sheet 32 s 2 and the first bar and thethird sheet 32 s 3 may be prevented. The length and outer diameter Db1of the first spacer coupling portion 356 a may be greater than thethickness of the first support plate 351 (the length in the Y-axisdirection of FIG. 13 ). The length and diameter Dc3 of the first spacer366 a may be greater than the thickness of the second support plate 361(the length in the Y-axis direction of FIG. 13 ). A diameter Dc1 of thefirst portion 366 a 1 may be greater than a thickness of the secondsupport plate 361. A border area between the first spacer couplingportion 356 a and the first support plate 351 may be rounded. Thecircumference of the end portion of the first portion 366 a 1 may berounded. A border area between the first portion 366 a 1 and the steppedportion 366 a 3 may be rounded. A border area between the first spacer366 a and the second support plate 361 may be rounded. The radius ofcurvature R4 at the border area between the first spacer couplingportion 356 a and the first support plate 351 may be the same as orsimilar to the radius of curvature R2 around the end portion of thefirst portion 366 a 1. A radius of curvature R2 around an end portion ofthe first portion 366 a 1 may be greater than a radius of curvature R1at a border area between the first portion 366 a 1 and the steppedportion 366 a 3. The radius of curvature R3 at the border area betweenthe first spacer 366 a and the second support plate 361 may be greaterthan the radius of curvature R4 at the border area between the firstspacer coupling portion 356 a and the first support plate 351. Theradius of curvature R3 at the border area between the first spacer 366 aand the second support plate 361 may be twice or more the radius ofcurvature R4 at the border area between the first spacer couplingportion 356 a and the first support plate 351.

FIG. 16 illustrates a second bar. Referring to FIG. 16 , the secondspacer 366 b may pass through the second holes 32 s 12, 32 s 22, and 32s 32 formed in each of the plurality of sheets 32 s 1, 32 s 2, and 32 s3 to couple to the second spacer coupling portion 356 b. In a state inwhich the second spacer 366 b is coupled to the second spacer couplingportion 356 b, the second spacer 366 b supports the second sheet 32 s 2.On the other hand, the second spacer 366 b and the second spacercoupling portion 356 b are spaced apart from the first sheet 32 s 1 andthe third sheet 32 s 3. Accordingly, the second bar supports the secondsheet 32 s 2 and does not support the first sheet 32 s 1 and the thirdsheet 32 s 3. The length of the second spacer 366 b is longer than thelength of the second spacer coupling portion 356 b. A part of the secondspacer 366 b may be inserted into the second spacer coupling portion 356b. For example, the second spacer coupling portion 356 b may be formedin a cylindrical shape. An outer diameter Dd1 of the second spacercoupling portion 356 b may be greater than a maximum diameter De3 of thesecond spacer 366 b. The outer diameter Dd1 of the second spacercoupling portion 356 b may decrease as the distance from the firstsupport plate 351 increases. An inner diameter Dd3 of the second spacercoupling portion 356 b may be the same as a diameter of a portion of thesecond spacer 366 b. The diameter Dd2 of the entrance of the secondspacer coupling portion 356 b may be larger than the inner diameter Dd3of the second spacer coupling portion 356 b so that the second spacer366 b can be easily inserted into the second spacer coupling portion 356b. In other words, a portion of the inner peripheral surface of thesecond spacer coupling portion 356 b may have an inner diameterincreasing toward the entrance. Due to the change in the inner diameter,a portion of the inner peripheral surface of the second spacer couplingportion 356 b is inclined by a third angle with the vertical line (theline in the Y-axis direction in FIG. 13 ). By designing the shape of thesecond spacer coupling portion 356 b, the mold may be easily separatedfrom the second spacer coupling portion 356 b during the injectionmolding process of the first support 350 b. The second spacer 366 b mayinclude a second portion 366 b 2 extending from the second support plate361 and a first portion 366 b 1 extending from the second portion 366 b2 and having a diameter smaller than a diameter of the second portion366 b 2. A stepped portion 366 b 3 may be formed between the firstportion 366 b 1 and the second portion 366 b 2 due to a difference indiameter between the first portion 366 b 1 and the second portion 366 b2. The length of the second part 366 b 2 is shorter than the length ofthe first portion 366 b 1. A length of the first portion 366 b 1 islonger than a length of the second spacer coupling portion 356 b. Thefirst portion 366 b 1 may be press-fitted into the second spacercoupling portion 356 b. When the first portion 366 b 1 is inserted intothe second spacer coupling portion 356 b, the second spacer couplingportion 356 b may be spaced apart from the stepped portion 366 b 3. Adiameter De2 (minimum diameter) of a point adjacent to the first portion366 b 1 in the second portion 366 b 2 is smaller than a diameter De3(maximum diameter) of a point adjacent to the second support plate 361.For example, the diameter of the second portion 366 b 2 may decreasetoward the second spacer coupling portion 356 b. Due to the change indiameter of the second part 366 b 2, the outer peripheral surface of thesecond part 366 b 2 is inclined by a fourth angle with respect to thevertical line (the expansion line in the Y direction in FIG. 13 ). Inthis case, the fourth angle is smaller than the third angle. The fourthangle may be smaller than the second angle. A diameter De2 of a pointadjacent to the first portion 366 b 1 in the second portion 366 b 2 isgreater than a diameter De1 of the first portion 366 b 1. The diameterof the first portion 366 b 1 may decrease as the distance from thesecond part 366 b 2 increases. Alternatively, the first portion 366 b 1may include a first part whose diameter decreases as the distance fromthe second part 366 b 2 increases and a second part that extends fromthe first part and has a constant diameter. In this case, the secondpart may be coupled to the second spacer coupling portion 356 b.Alternatively, the first portion 366 b 1 may have a constant diameter asa whole. By designing the shape of the second spacer 366 b, the mold canbe easily separated from the second spacer 366 b during the injectionmolding process of the second support 360 b. A minimum diameter De2 ofthe second portion 366 b 2 is greater than an inner diameter Dd3 of thesecond spacer coupling portion 356 b. The minimum diameter De2 of thesecond portion 366 b 2 may be equal to, greater than, or smaller thanthe diameter Dd2 of the entrance of the second spacer coupling portion356 b. A maximum diameter De3 of the second portion 366 b 2 is smallerthan an outer diameter Dd1 of the second spacer coupling portion 356 b.A diameter of the second hole 32 s 22 of the second sheet 32 s 2 isgreater than a diameter De1 of the first portion 366 b 1 and smallerthan a minimum diameter De2 of the second portion 366 b 2. Accordingly,the stepped portion 366 b 3 of the second spacer 366 b may support thesecond sheet 32 s 2. The diameters of the second holes 32 s 22 and 32 s32 of the first sheet 32 s 1 and the third sheets 32 s 3 are larger thanthe outer diameter Dd1 of the second spacer coupling portion 356 b.Accordingly, the first sheet 32 s 1 and the third sheet 32 s 3 arespaced apart from the second spacer 366 b and the second spacer couplingportion 356 b. As such, when the first sheet 32 s 1 and the third sheet32 s 3 are spaced apart from the second bar in addition to the secondsheet 32 s 2 supported by the second bar, Heat conduction between thesecond bar and the first sheet 32 s 1 and the second bar and the thirdsheet 32 s 3 may be prevented. A length and an outer diameter Dd1 of thesecond spacer coupling portion 356 b may be greater than a thickness ofthe first support plate 351. A length and a diameter De3 of the secondspacer 366 b may be greater than a thickness of the second support plate361. A diameter De1 of the first portion 366 b 1 may be greater than athickness of the second support plate 361.

FIG. 17 illustrates a third bar. Referring to FIG. 17 , the third spacer366 c may pass through third holes 32 s 13, 32 s 23, and 32 s 33 formedin each of the plurality of sheets 32 s 1, 32 s 2 and 32 s 3 to coupleto the third spacer coupling portion 356 c. In a state in which thethird spacer 366 c is coupled to the third spacer coupling portion 356c, the third spacer 366 c supports the third sheet 32 s 3. On the otherhand, the third spacer 366 c and the third spacer coupling portion 356 care spaced apart from the first sheet 32 s 1 and the second sheet 32 s2. Accordingly, the third bar supports the third sheet 32 s 3 and doesnot support the first sheet 32 s 1 and the second sheet 32 s 2. A lengthof the third spacer 366 c is longer than a length of the third spacercoupling portion 356 c. A portion of the third spacer 366 c may beinserted into the third spacer coupling portion 356 c. For example, thethird spacer coupling portion 356 c may be formed in a cylindricalshape. An outer diameter of the third spacer coupling portion 356 c maybe greater than a maximum diameter of the third spacer 366 c. The outerdiameter of the third spacer coupling portion 356 c may decrease as thedistance from the first support plate 351 increases. An inner diameterof the third spacer coupling portion 356 c may be the same as a diameterof a portion of the third spacer 366 c. The diameter of the entrance ofthe third spacer coupling portion 356 c is greater than the innerdiameter of the third spacer coupling portion 356 c so that the thirdspacer 366 c can be easily inserted into the third spacer couplingportion 356 c. In other words, a portion of the inner peripheral surfaceof the third spacer coupling portion 356 c may have an inner diameterincreasing toward the entrance. Due to the change in the inner diameter,a portion of the inner peripheral surface of the third spacer couplingportion 356 c is inclined by a fifth angle with the vertical line (theline in the Y-axis direction of FIG. 13 ). By designing the shape of thethird spacer coupling portion 356 c, the mold can be easily separatedfrom the third spacer coupling portion 356 c during the injectionmolding process of the first support 350 b. The third spacer 366 c maybe formed to have a diameter that decreases as the distance from thesecond support plate 361 increases as a whole. A part of the thirdspacer 366 c may be press-fitted into the third spacer coupling portion356 b. Alternatively, the third spacer 366 c may include a first partwhose diameter decreases as the distance from the second support plate361 increases and a second part that extends from the first part and hasa constant diameter. In this case, the second part may be press-fittedinto the third spacer coupling portion 356 c. By designing the shape ofthe third spacer 366 c, the mold can be easily separated from the thirdspacer 366 c during the injection molding process of the second support360 b. Due to the change in the diameter of the third spacer 366 c, theouter peripheral surface of the third spacer 366 c is inclined by asixth angle with respect to the vertical line (the expansion line in theY direction of FIG. 13 ). In this case, the sixth angle is smaller thanthe fifth angle. The sixth angle may be smaller than the fourth angle. Amaximum diameter of the third spacer 366 c may be smaller than a maximumdiameter of the first spacer 366 a. A maximum diameter of the secondspacer 366 b may be greater than a maximum diameter of the first spacer366 a. The diameter of the third hole 32 s 33 of the third sheet 32 s 3is greater than the minimum diameter of the third spacer 366 c andsmaller than the maximum diameter of the third spacer 366 c. In thiscase, the diameter of the third hole 32 s 33 of the third sheet 32 s 3is similar to the maximum diameter of the third spacer 366 c.Accordingly, the third sheet 32 s 3 may be supported by the outerperipheral surface of the third spacer 366 c at a position adjacent tothe second support plate 361. A diameter of each of the third holes 32 s13 and 32 s 23 of the first sheet 32 s 1 and the second sheet 32 s 2 islarger than the outer diameter of the third spacer coupling portion 356c. Accordingly, the first sheet 32 s 1 and the second sheet 32 s 2 arespaced apart from the third spacer 366 c and the third spacer couplingportion 356 c. As such, when the first sheet 32 s 1 and the second sheet32 s 2 are spaced apart from the third bar in addition to the thirdsheet 32 s 3 supported by the third bar, the heat conduction between thethird bar and the first sheet 32 s 1 and the third bar and the secondsheet 32 s 2 may be prevented. A length and an outer diameter of thethird spacer coupling portion 356 c may be greater than a thickness ofthe first support plate 351. A length and a diameter of the third spacer366 c may be greater than a thickness of the second support plate 361.

FIG. 18 illustrates a fourth bar. Referring to FIG. 18 , the thirdspacer 366 c may pass through the fourth holes 32 s 14, 32 s 24, and 32s 34 formed in each of the plurality of sheets 32 s 1, 32 s 2, and 32 s3 to couple to the first spacer coupling portion 356 a. When the thirdspacer 366 c is coupled to the first spacer coupling portion 356 a, thethird spacer 366 c does not support the first to third sheets 32 s 1, 32s 2, and 32 s 3. In other words, the third spacer 366 c and the firstspacer coupling portion 356 a are spaced apart from the first sheet 32 s1 to the third sheet 32 s 3. Accordingly, the fourth bar does notsupport the first to third sheets 32 s 1, 32 s 2, and 32 s 3. Thediameters of the fourth holes 32 s 14, 32 s 24, and 32 s 34 of the firstto third sheets 32 s 1, 32 s 2, and 32 s 3 are larger than the outerdiameter of the first spacer coupling portion 356 a. Since thestructures of the third spacer 366 c and the first spacer couplingportion 356 a have been previously described, a detailed descriptionthereof will be omitted.

FIG. 19 is a view illustrating a distribution structure provided in theinjection-molded second support, FIG. 20 is a plan view illustrating thesecond support, FIG. 21 is a view taken along line 21-21 of FIG. 20 ,and FIG. 22 is a view taken along line 22-22 of FIG. 20 .

Referring to FIGS. 19 to 22 , the first support 350 b and the secondsupport 360 b may be injection-molded as described above. The firstsupport 350 b may be manufactured by manufacturing a first mold having afirst space for generating the first support 350 b and then injecting aninjection liquid into the first space to harden the injection liquid.Similarly, the second support 360 b may be manufactured by manufacturinga second mold having a second space for generating the second support360 b and then injecting an injection liquid into the second space toharden injection liquid. As such, since the spacer coupling portion ofthe first support 350 b and the spacer of the second support 360 b areimportant components for maintaining the shape of the vacuum space, thespacer coupling portion of the first support 350 b and the spacer of thesecond support 360 b have to be manufactured with accurate dimensions,and the dimensional tolerance of the spacer coupling portion or spacersshould be minimized. To this end, in the present embodiment, theconfiguration for injecting and dispensing the injection liquid in eachmold forming each of the first support 350 b and the second support 360b can be placed at a position spaced apart from the spacer or the spacercoupling portion. For example, a mold gate for injecting an injectionliquid in each mold may be disposed at a position corresponding to thethrough-holes 352 and 362 in each of the supports 350 b and 360 b. Whenthe mold gate is disposed at a position corresponding to thethrough-holes 352 and 362, the mold may include a mold distributionportion for distributing the injection liquid injected through the moldgate to the first space or the second space, and a mold bridge forconnecting the mold distribution portion to the first space and thesecond space. If the mold gate for injecting the injection liquid isdisposed at a position corresponding to the spacer 366 or the spacercoupling portion 356 in the mold, there may be a disadvantage in thatthe height tolerance between the spacer or the spacer coupling portionformed at a position corresponding to the mold gate and the spacer orthe spacer coupling portion formed at a position that does notcorrespond to the mold gate. On the other hand, according to the presentinvention, this problem can be solved.

When the mold is removed after injection of the injection liquid iscompleted, the first support 350 b and the second support 360 b willinclude the support gate, the support distribution portion, and thesupport bridge corresponding to the mold gate, the mold distributionportion, and the mold bridge. Hereinafter, the support gate, the supportdistribution portion, and the support bridge will be collectivelyreferred to as a distribution structure.

Since the shape of the distribution structure may be the same as that ofthe first support 350 b and the second support 360 b, and the positionof the distribution structure may be the same as or symmetrical to thatof the first support 350 b and the second support 360 b, only thedistribution structure formed on the second support 360 b will bedescribed below. Each of the first support 350 b and the second support360 b may be coupled to each other with a part or all of thedistribution structure removed or may be coupled to each other with thedistribution structure not removed. The distribution structure mayinclude a support distribution portion 368 and a plurality of supportbridges 367 extending from the support distribution portion 368 in theradial direction. The support distribution portion 368 may be located inthe through-hole 362. One through-hole 362 may be defined by a pair ofparallel first extension portions 361 a 1 and 361 a 2 and a pair ofsecond extension portions perpendicular to the pair of first extensionportions 361 a 1 and 361 a 2 and parallel to each other. Since each endportion of the pair of second extension portions 361 b 1 and 361 b 2 isconnected to each end portion of the pair of first extension portions361 a 1 and 361 a 2, the pair of first extension portions 361 a 1 and361 a 2 and the pair of second extension portions 361 b 1 and 361 b 2may form a through-hole 362 having a substantially rectangular shape.Each of the spacers 366 may be disposed at a connection portion of eachof the pair of first extension portions 361 a 1 and 361 a 2 and each ofthe pair of second extension portions 361 b 1 and 361 b 2. Accordingly,the support distribution portion 368 is disposed to be spaced apart fromthe spacer 366.

During the injection molding process, a support gate may protrude fromthe support distribution portion 368. The structure of the support gatewill be described later with reference to FIGS. 29 and 30 .

The support distribution portion 368 may be formed in a disk shape, forexample. The plurality of support bridges 367 may be arranged to besymmetrical with respect to the support distribution portion 368, forexample. The plurality of support bridges 367 may be disposed at equalintervals along the circumference of the support distribution portion368. For example, two support bridges may be connected to each of thepair of first extension portions 361 a 1 and 361 a 2 or may be connectedto each of the pair of second extension portions 361 b 1 and 361 b 2.Alternatively, in order to easily distribute the injection liquid toeach of the pair of first extension portions 361 a 1 and 361 a 2 and thepair of second extension portions 361 b 1 and 361 b 2, four supportbridges 367 may extend from the support distribution portion 368 to beconnected to each of the extension portions 361 a 1, 361 a 2, 361 b 1,and 361 b 2. For example, the four support bridges 367 may be disposedat intervals of 90 degrees. In this case, the injection liquid mayuniformly flow into the space corresponding to each extension portion inthe mold, and thus injection uniformity may be improved. A width of thesupport bridge 367 may be greater than a diameter of the spacer 366. Thesupport bridge 367 may include first to third parts 367 a 1 to 367 a 3.The third part 367 a 3 may extend in a horizontal direction from thesupport distribution portion 368. The second part 367 a 2 may extendfrom the third part 367 a 3 and may have a thickness thinner than thatof the third part 367 a. The first part 367 a 1 may extend from thesecond part 367 a and may be connected to the extension portions 361 a1, 361 a 2, 361 b 1, and 361 b 2. The thickness of the third part 367 a3 may be constant. The thickness of the second part 367 a 2 may decreasefrom the third part 367 a 3 toward the first part 367 a 1. The thicknessof the first part 367 a 1 may be constant. The thickness of the firstpart 367 a 1 may be thinner than the thickness of the extension portions361 a 1, 361 a 2, 361 b 1, and 361 b 2. In this case, when the firstpart 367 a 1 is cut, the distribution structure can be easily removed.The thickness of the third part 367 a 3 may be the same as or similar tothe thickness of each of the extension portions 361 a 1, 361 a 2, 361 b1, 361 b 2 to prevent interference with the radiation resistance sheet.Each of the molds may further include a mold storage portion for storingthe injection liquid in the vicinity of the mold distribution portion.Accordingly, after completion of the injection molding, the distributionstructure may further include a support storage portion 368 a. Thesupport storage portion 368 a may protrude from the support distributionportion 368. The support storage portion 368 a may be formed in acircular shape, when viewed in the longitudinal direction of the spacer366. The support storage portion 368 a may be formed in a cylindrical ortruncated cone shape, for example. In this case, the protrusiondirection of the support storage portion 368 a may be located oppositeto the support gate for injection of the injection liquid. In theprocess of injecting the injection liquid into the mold through the moldgate, a portion of the injection liquid is distributed in the molddistribution portion, and, at the same time, the other portion of theinjection liquid may be temporarily stored in the mold storage portion.In the injection molding process, high-temperature and high-pressureinjection liquid is supplied into the mold, wherein the mold storageportion temporarily stores the injection liquid to momentarily lower theflow rate thereof so that the injection liquid flows stably through themold bridge (acting as a damping). Accordingly, after the injectionmolding is completed, the injection liquid stored in the mold storageportion is cured to form the support storage portion 368 a in thedistribution structure. A diameter of the support storage portion 368 amay be formed to be smaller than a diameter of the support distributionportion 368. The diameter of the support storage portion 368 a issmaller than the distance between the spacers 366. A diameter of thesupport storage portion 368 a may be formed to be greater than a widthof the bridge 367. When the distribution structure is removed from eachof the first support 350 b and the second support 360 b, a portion orall of the support storage portion 368 a is removed, or a portion or allof the support bridge 367 is cut, and thus the storage portion 368 a,the distribution portion 368, and the support bridge 367 may be removed.Meanwhile, when each of the supports 350 b and 360 b includes aplurality of distribution structures, two adjacent distributionstructures may be designed within 10 pitches. In this case, 1 pitchmeans a distance between two adjacent bars.

FIG. 23 is a view illustrating a distribution structure of a secondsupport according to another embodiment, and FIG. 24 is across-sectional view taken along line 24-24 of FIG. 23 .

This embodiment is the same as the distribution structure described withreference to FIGS. 19 to 22 in other parts, but there is a difference inthe shape of the bridge. Therefore, only the characteristic parts of thepresent embodiment will be described below.

Referring to FIGS. 23 and 24 , the support bridge 367 b of the presentembodiment may include a second part 367 b 2 extending from the supportdistribution portion 368, and a first part 367 b 1 extending from thesecond part 367 b 2 and connected to the extension portions 361 a 1, 361a 2, 361 b 1, and 361 b 2. The thickness of the second part 367 b 2 maybe the same as the thickness of the support distribution portion 368.The thickness of the first part 367 b 1 may decrease from the supportdistribution portion 368 toward the extension portions 361 a 1, 361 a 2,361 b 1, and 361 b 2. According to this structure, the first part 367 bcan be easily cut.

FIG. 25 is a view illustrating a distribution structure of a secondsupport according to another embodiment, and FIG. 26 is across-sectional view taken along lines 26-26 of FIG. 25 .

The present embodiment is the same as the distribution structuredescribed with reference to FIGS. 19 to 22 in other parts, but there isa difference in the shape of the bridge. Therefore, only thecharacteristic parts of the present embodiment will be described below.

Referring to FIGS. 25 and 26 , the support bridge 367 b of the presentembodiment may have a constant thickness in the longitudinal direction.For example, the thickness of the support bridge 367 b may be the sameas that of the distribution portion 368. The thickness of the supportbridge 367 b may be the same as the thickness of the extension portions361 a 1, 361 a 2, 361 b 1, and 361 b 2. According to this structure, theinjection liquid can smoothly flow toward the extension portion throughthe mold bridge.

FIG. 27 is a view illustrating a distribution structure of a secondsupport according to another embodiment.

Referring to FIG. 27 , in the present embodiment, the distributionstructure may not include a support storage portion. The distributionstructure may then include a support distribution portion 368 and asupport bridge 367.

FIG. 28 is a view illustrating a distribution structure of a secondsupport according to another embodiment. This embodiment is the same asthe distribution structure described with reference to FIGS. 19 to 22 inother parts, but there is a difference in the shape of the supportstorage portion. Therefore, only the characteristic parts of the presentembodiment will be described below.

Referring to FIG. 28 , the distribution structure of the presentembodiment may include a support storage portion 368 a 1 protruding fromthe support distribution portion 368. In this case, the protrudingdirection of the support storage portion 368 a 1 is opposite to theextending direction of the spacer 366.

FIG. 29 is a view illustrating a support gate in the distributionstructure in a state in which the first support and the second supportare coupled. This embodiment is the same as the distribution structuredescribed with reference to FIGS. 19 to 22 in other parts, but theposition of the support gate is illustrated in more detail.

Referring to FIG. 29 , in this embodiment, the support gate 369 of thedistribution structure may extend in a direction opposite to theextending direction of the spacer 366 from the second support 360 b, forexample. In this case, the diameter of the support gate 369 may besmaller than the diameter of the support storage portion 368 a of FIG.19 . A diameter of the support gate 369 may be larger than a diameter ofthe spacer 366. For easy injection of the injection liquid, the diameterof the mold gate may increase toward the mold distribution portion.Correspondingly, the diameter of the support gate 369 may increasetoward the support distribution portion 368. In other words, the exitdiameter of the support gate 369 may be larger than the entrancediameter thereof. A plurality of support gates 369 may be provided forrapid distribution of the injection liquid. In this case, the pluralityof support gates 369 are disposed at spaced apart positions, and theextending directions of each of the support gates 369 are the same. Theinjection direction of the injection liquid at the mold gate is thesame. When the support gate 369 in the second support 360 b extends in adirection opposite to the direction in which the spacer 366 extends, ina state in which the second support 360 b and the first support 350 bare coupled, the support gate 369 does not interfere with the radiationresistance sheet. Accordingly, it is possible to use the support gate369 without removing it. Of course, the support gate 369 may be removedaccording to the use position of the support. In addition, when thesupport gate 369 in the second support 360 b extends in a directionopposite to the direction in which the spacer 366 extends, injection ispossible with a small injection pressure. The same applies to thesupport gate of the first support 350 b as described above.

FIG. 30 is a view illustrating another example of a gate in thedistribution structure in a state in which the first support and thesecond support are coupled. This embodiment is the same as FIG. 30 inother parts, and there is a difference in the position of the supportgate.

Referring to FIG. 30 , in the present embodiment, the support gate 369 aof the distribution structure may extend in the same direction as theextending direction of the spacer 366 from the second support 360 b, forexample. In this case, the diameter of the support gate 369 a may besmaller than the diameter of the storage portion 368 a of FIG. 19 . Adiameter of the support gate 369 a may be larger than a diameter of thespacer 366. For easy injection of the injection liquid, the diameter ofthe mold gate may increase toward the mold distribution portion.Correspondingly, the diameter of the gate 369 a may increase toward thesupport distribution portion 368. In other words, the exit diameter ofthe gate 369 a may be larger than the entrance diameter. A plurality ofsupport gates 369 a may be provided for rapid distribution of theinjection liquid. In this case, the plurality of support gates 369 a aredisposed at spaced apart positions, and the extension directions of eachsupport gate 369 a are the same. The injection direction of theinjection liquid at the mold gate in the mold is the same. When thesupport gate 369 a in the second support 360 b extends in the samedirection as the extending direction of the spacer 366, in a state inwhich the second support 360 b and the first support 350 b are coupledto prevent interference between the support gate 369 and the pluralityof sheets 32 s 1, 32 s 2, and 32 s 3, the support gate 369 is removed ora hole through which the gate 369 a passes is additionally formed oneach of the sheets 32 s 1, 32 s 2, and 32 s 3. When the support gate 369a is not removed, the protrusion length of the support gate 369 a may besmaller than the length of the spacer 366. When the support gate 369 ais not removed, the support gate 369 a may serve to support thespherical structure. In the above embodiment, it has been described thatthe support gate is present separately from the support distributionportion, but, alternatively, at least a part of the support distributionportion may be a support gate.

1. A vacuum adiabatic body comprising: a first plate; a second plateseparated from the first plate in a first direction to define a vacuumspace between the first plate and the second plate; and a supportprovided between the first plate and the second plate, wherein thesupport includes: a first support plate, a plurality of couplersprotruding from the first support plate, a second support plate, and aplurality of spacers protruding from the second support plate andcoupled to the plurality of couplers; and a radiation resistance sheetsupported by at least one of the spacers and spaced apart from at leastone of the first support plate or the second support plate, wherein eachof the first and second support plates includes a plurality ofthrough-holes, and wherein the support includes a distribution structureprovided in one of the through-holes, the distribution structureincluding a support distribution base located in the through-hole. 2.The vacuum adiabatic body of claim 1, wherein the through-hole, in whichthe distribution structure is provided, is defined by a pair of firstextensions and a pair of second extensions, and wherein the distributionstructure includes a support bridge configured to extend between thesupport distribution base and at least one of the first or the secondextensions.
 3. The vacuum adiabatic body of claim 2, wherein the supportdistribution base is formed as a disk shape.
 4. The vacuum adiabaticbody of claim 2, wherein the distribution structure includes a pluralityof the support bridges provided at equal intervals around the supportdistribution base.
 5. The vacuum adiabatic body of claim 2, wherein thedistribution structure includes a plurality of the support bridgessymmetrically disposed with respect to the support distribution base. 6.The vacuum adiabatic body of claim 2, wherein a thickness of the supportbridge is equal to or less than a thickness of the first support plateand the second support plate.
 7. The vacuum adiabatic body of claim 6,wherein the thickness of at least a portion of the support bridgedecreases in a direction toward the one of the first or secondextensions to which the support bridge is connected.
 8. The vacuumadiabatic body of claim 6, wherein a width of the support bridge isgreater than a width of the spacer.
 9. The vacuum adiabatic body ofclaim 2, wherein the distribution structure further includes a supportstorage protrusion protruding from the support distribution base, thesupport storage protrusion being configured to receive an Injectionliquid to form the support via the support distribution base.
 10. Thevacuum adiabatic body of claim 9, wherein a width of the support storageprotrusion is smaller than a distance between two adjacent ones of thespacers.
 11. The vacuum adiabatic body of claim 9, wherein the supportstorage protrusion is formed in a cylindrical or truncated cone shape.12. The vacuum adiabatic body of claim 9, wherein a width of the supportstorage protrusion is smaller than a width of the support distributionbase.
 13. The vacuum adiabatic body of claim 9, wherein a width of thesupport storage protrusion is larger than a width of one or theplurality of spacers.
 14. The vacuum adiabatic body of claim 2, furthercomprising: a support gate protrusion configured to protrude from thesupport distribution base, the support gate protrusion being configuredto provide an injection liquid forming the support to the supportdistribution base.
 15. The vacuum adiabatic body of claim 14, wherein awidth of the support gate protrusion is greater than a width of one ofthe plurality of spacers.
 16. The vacuum adiabatic body of claim 14,wherein a width of the support gate protrusion decreases in a directionfrom the support distribution base.
 17. The vacuum adiabatic body ofclaim 14, wherein an extension direction of the support gate protrusionis opposite to an extension direction of at least one of the spacers.18. The vacuum adiabatic body of claim 14, wherein the support gateprotrusion and at least one of the spacers have a common extensiondirection, and wherein a length of the support gate protrusion is lessthan a length of the at least one of the spacers in the first direction.19. The vacuum adiabatic body of claim 1, wherein the support includes aplurality of the distribution structures, a distance between an adjacentpair of the spacers is a pitch, and an adjacent pair of the plurality ofdistribution structures are formed within ten of the pitches of eachother.
 20. A vacuum adiabatic body comprising: a first plate; a secondplate separated from the first plate in a first direction to define avacuum space between the first plate and the second plate; a supportprovided between the first plate and the second plate, wherein thesupport includes: a support plate including at least one through-hole; aplurality of spacers extending from the support plate in the firstdirection between the first and second plates; a support distributionbase located in the through-hole; and a support bridge configured toextend between the support distribution base and a section of thesupport plate defining the through-hole; and a sheet supported by atleast one of the spacers and spaced apart from at the support plate.